The document discusses elements and the periodic table, stating that all matter is made up of elements and compounds organized in the periodic table, which helps us learn the properties of elements. It introduces the topic of the module which is to familiarize students with the names, symbols, locations, and groups of elements in the periodic table. The objectives are to identify element names and symbols, and understand the location and family numbers of elements in the periodic table.
1. The document provides information about the development team and reviewers of a science module on elements and the periodic table.
2. It notes that elements are arranged in the periodic table based on their atomic number and properties. Elements in the same group have similar properties.
3. The periodic table helps organize all known elements and provides a way to predict their behaviors and properties based on their location in the table.
This document provides an overview of key chemistry concepts including atoms, elements, compounds, symbols, the periodic table, molecules, formulae, and chemical reactions. It explains that everything is made of tiny particles called atoms, which combine to form either elements or compounds. Compounds contain two or more elements joined together. The periodic table organizes all known elements based on their properties. Molecules are formed when atoms of elements combine, and chemical formulae represent the atoms that make up compounds and molecules. Chemical reactions involve atoms rearranging to form new substances.
This document provides information about a module on chemical nomenclature. It begins with an introduction that names are used to identify and distinguish between people and compounds. It then outlines the lessons contained in the module, which are on chemical symbols, formulas, empirical formulas, molecular formulas, and nomenclature. The document concludes by explaining how students should approach learning from the module, including taking pre- and post-tests.
This document provides information about atomic structure:
1. It explains that atoms are made up of even smaller particles called subatomic particles, including protons, neutrons, and electrons.
2. Protons and neutrons are located at the center of the atom in a dense core called the nucleus. Electrons orbit around the outside of the atom.
3. Atoms have an overall neutral charge because they contain an equal number of positively charged protons and negatively charged electrons. Neutrons have no charge.
This document provides instructions for an activity to familiarize students with the periodic table of elements. It contains 9 multiple choice questions asking students to identify the symbols for various elements based on their names or atomic numbers. It directs students to record their answers in a table and check their work against the answers provided. The final part of the activity asks students to identify the group number each element belongs to on the periodic table.
1. The document discusses the development and importance of the periodic table of elements. It traces the periodic table back to Dobereiner's triads in 1817 and covers contributions by scientists like Newlands, Meyer, Mendeleev and Moseley that led to the modern periodic table.
2. The periodic table organizes elements into vertical columns called groups with similar properties and horizontal rows called periods. Elements are classified based on their atomic structure and properties like reactivity and atomic radius that vary periodically with atomic number.
3. The periodic table is useful for predicting chemical behaviors and properties of elements based on their location in the table. It provides an organized framework for understanding the relationships between elements and how their properties change
1. The document discusses the development and importance of the periodic table of elements. It traces the periodic table back to Dobereiner's triads in 1817 and covers contributions by scientists like Newlands, Meyer, Mendeleev and Moseley that led to the modern periodic table.
2. The periodic table organizes elements by atomic number and groups elements with similar properties together. It shows trends like atomic radius decreasing across periods and increasing down groups. The position of an element in the table can reveal information about its chemical properties and reactivity.
3. The document emphasizes that the periodic table is an essential tool for understanding and predicting the behavior of elements and their compounds. It provides a systematic organization of all
Periodic Table of Elements Grade 7 1st Quarter Iril Rollo
This document provides instructions for an activity to familiarize students with the periodic table. It asks students to complete a table by identifying the symbols for various elements using their periodic table. It also asks students to identify the group number each element belongs to. The objectives are for students to demonstrate familiarity with the layout of the periodic table, recognize information about elements, and identify element group numbers. Students are directed to write the activity name and date in their notebook before answering questions using their periodic table to identify element symbols and group numbers.
1. The document provides information about the development team and reviewers of a science module on elements and the periodic table.
2. It notes that elements are arranged in the periodic table based on their atomic number and properties. Elements in the same group have similar properties.
3. The periodic table helps organize all known elements and provides a way to predict their behaviors and properties based on their location in the table.
This document provides an overview of key chemistry concepts including atoms, elements, compounds, symbols, the periodic table, molecules, formulae, and chemical reactions. It explains that everything is made of tiny particles called atoms, which combine to form either elements or compounds. Compounds contain two or more elements joined together. The periodic table organizes all known elements based on their properties. Molecules are formed when atoms of elements combine, and chemical formulae represent the atoms that make up compounds and molecules. Chemical reactions involve atoms rearranging to form new substances.
This document provides information about a module on chemical nomenclature. It begins with an introduction that names are used to identify and distinguish between people and compounds. It then outlines the lessons contained in the module, which are on chemical symbols, formulas, empirical formulas, molecular formulas, and nomenclature. The document concludes by explaining how students should approach learning from the module, including taking pre- and post-tests.
This document provides information about atomic structure:
1. It explains that atoms are made up of even smaller particles called subatomic particles, including protons, neutrons, and electrons.
2. Protons and neutrons are located at the center of the atom in a dense core called the nucleus. Electrons orbit around the outside of the atom.
3. Atoms have an overall neutral charge because they contain an equal number of positively charged protons and negatively charged electrons. Neutrons have no charge.
This document provides instructions for an activity to familiarize students with the periodic table of elements. It contains 9 multiple choice questions asking students to identify the symbols for various elements based on their names or atomic numbers. It directs students to record their answers in a table and check their work against the answers provided. The final part of the activity asks students to identify the group number each element belongs to on the periodic table.
1. The document discusses the development and importance of the periodic table of elements. It traces the periodic table back to Dobereiner's triads in 1817 and covers contributions by scientists like Newlands, Meyer, Mendeleev and Moseley that led to the modern periodic table.
2. The periodic table organizes elements into vertical columns called groups with similar properties and horizontal rows called periods. Elements are classified based on their atomic structure and properties like reactivity and atomic radius that vary periodically with atomic number.
3. The periodic table is useful for predicting chemical behaviors and properties of elements based on their location in the table. It provides an organized framework for understanding the relationships between elements and how their properties change
1. The document discusses the development and importance of the periodic table of elements. It traces the periodic table back to Dobereiner's triads in 1817 and covers contributions by scientists like Newlands, Meyer, Mendeleev and Moseley that led to the modern periodic table.
2. The periodic table organizes elements by atomic number and groups elements with similar properties together. It shows trends like atomic radius decreasing across periods and increasing down groups. The position of an element in the table can reveal information about its chemical properties and reactivity.
3. The document emphasizes that the periodic table is an essential tool for understanding and predicting the behavior of elements and their compounds. It provides a systematic organization of all
Periodic Table of Elements Grade 7 1st Quarter Iril Rollo
This document provides instructions for an activity to familiarize students with the periodic table. It asks students to complete a table by identifying the symbols for various elements using their periodic table. It also asks students to identify the group number each element belongs to. The objectives are for students to demonstrate familiarity with the layout of the periodic table, recognize information about elements, and identify element group numbers. Students are directed to write the activity name and date in their notebook before answering questions using their periodic table to identify element symbols and group numbers.
This document differentiates between elements and compounds. An element is made of only one type of atom and cannot be broken down further, while a compound is made of two or more elements. The periodic table arranges elements and provides information about their properties. Common elements include metals like copper, iron, magnesium, and calcium, as well as nonmetals like chlorine, carbon, and fluorine. Compounds are named according to set rules based on the elements they contain and whether oxygen is present. Examples are given of both elements and compounds.
This document discusses elements and the periodic table. It provides examples of elements that exist in solid, liquid and gas states. It explains that elements can be grouped based on similar properties, and that Dmitri Mendeleev created one of the first periodic tables by arranging the 63 known elements in order of atomic mass. The modern periodic table is based on Mendeleev's work and groups elements according to atomic number. It provides examples of common element symbols and how they are derived from Latin names, English names or names of scientists.
CBSE - This ppt is made by referring the concepts of Living Science (Ratnasagar) .
For instant Assessment,after every sub -topic Recap slides are added to test students knowledge.
Reflection Of Consumer Chemistry.pdfReflection Of Consumer ChemistryLaura Benitez
1. The experiment tested the solubility of alkaline earth metal nitrates (Mg, Ca, Sr, Ba) and lead nitrate in various solutions to observe periodic trends.
2. The alkaline earth metals became less soluble from Mg to Ba as atomic radius increased down the group. Lead reacted differently than the alkaline earth metals in some tests.
3. A systematic error occurred when the student observed a reaction between barium and iodide that should not have occurred, likely due to an improperly cleaned test tube.
There are three main states of matter: solids, liquids, and gases. Solids have a fixed shape and volume, and their particles cannot move around freely but vibrate in place. Liquids have a fixed volume but can flow and take the shape of their container. Gases have neither a fixed shape nor volume, and their particles move freely and are spread out. The properties that distinguish these three states are important to understand the structure and behavior of matter.
Elements are pure substances that cannot be broken down further through chemical or physical means. There are currently 118 known elements, with new ones occasionally being discovered through artificial nuclear reactions. Elements are identified by their atomic number, which represents the number of protons in the nucleus. Elements are the basic building blocks of all matter and are used to create thousands of materials, though some like plutonium are also used in nuclear weapons due to their radioactive properties.
History Of The Periodic Table Of ElementsJill Ailts
The periodic table arranges chemical elements in order of increasing atomic number and displays recurring trends in their properties. This lab report describes two activities where students observed physical properties of elements and used the periodic table to arrange and identify elemental cards based on patterns in atomic structure. Materials included samples of common elements like calcium, sulfur, and aluminum for the first activity, and periodic table cards for the second. The goal was to familiarize students with the organization and trends shown in the periodic table.
This document provides information about atoms in the periodic table. It begins with background on the development of the periodic table by scientists like Döbereiner, Newlands, and Mendeleev. Mendeleev organized the elements in a table based on atomic mass, leaving spaces for undiscovered elements. The periodic table arranges elements in rows (periods) and columns (groups) according to atomic structure. Elements in the same group have the same number of outer shell electrons and similar properties. The document defines key terms and explains how elements are named, grouped as metals/nonmetals/metalloids, and classified into groups based on their location in the periodic table.
This document provides an overview of elements, compounds, and how they relate. It defines elements as pure substances made of single atom types, while compounds are formed when two or more different elements bond together. Elements are represented by symbols on the periodic table and have distinct properties based on their atomic structure. Compounds have new properties and are represented by formulas showing the elements present and their ratios. The document explains how ionic and covalent bonds form compounds from elements and provides examples of common elements, compounds, and how to determine compound formulas from their constituent ions.
This document provides an outline for a lesson on transition metals and complex ions. It includes:
1) A review of trends in the d-block elements from Topic 3.
2) An explanation of what defines a transition metal and their common properties.
3) A discussion of how transition metals can form complex ions with variable oxidation states and an investigation of complex ions.
4) An explanation of why complex ions are often colored due to d-orbital splitting effects.
This document provides objectives and content for a chemistry unit on ionic and molecular compounds. The objectives include describing how ions combine to form compounds, writing formulas, determining compound types, naming compounds, writing formulas for compounds containing polyatomic ions, determining ion charges, naming compounds from formulas, and testing ions in solutions. The content reviews ionic bonding, writing formulas, naming binary ionic compounds and those containing polyatomic ions, determining ion charges, acid and base naming, and molecular compound naming. It also outlines labs to identify common ions and practice these skills.
The document summarizes key concepts about the periodic table, including its history and development. It describes how Mendeleev organized the elements and made predictions that were later confirmed, establishing the periodic law. Over time, the periodic table was refined as new elements were discovered and atomic number was established as the basis for organization. The document also outlines periodic trends in properties like atomic radius, ionization energy, and electronegativity.
1) The periodic table was developed in the 1860s by Russian chemist Dmitri Mendeleev to show relationships between elements.
2) Mendeleev arranged elements by atomic mass and was able to predict properties of undiscovered elements.
3) The modern periodic table is arranged by atomic number instead of mass and new elements have been discovered and added over time.
An introductory presentation to the periodic table I gave to my children's 5th grade classes. If you enjoy it, please, use it in your own class, if you are a teacher, or, use it to give a similar talk at your children's elementary school.
The document contains a word scramble activity using element symbols. It provides the scrambled element combinations and clues to figure out 4 words. The answers are:
1. RETINA (Sodium + Titanium + Rhenium)
2. PERSON (Sulfur + Nitrogen + Phosphorous + Oxygen + Erbium)
3. CABIN (Calcium + Indium + Boron)
4. POKER (Erbium + Polonium + Potassium)
The document contains a word scramble activity using element symbols. It provides the scrambled element combinations and clues to figure out 4 words. The answers are:
1. RETINA (Sodium + Titanium + Rhenium)
2. PERSON (Sulfur + Nitrogen + Phosphorous + Oxygen + Erbium)
3. CABIN (Calcium + Indium + Boron)
4. POKER (Erbium + Polonium + Potassium)
The document summarizes a presentation about the periodic table given by Lisa Allen at Stonington High School. It discusses the early development of the periodic table by scientists like Cannizzaro, Mendeleev, and others. Mendeleev was able to organize the elements into the first recognizable periodic table based on their atomic masses and chemical properties. He even predicted the properties of yet-to-be discovered elements. The document then outlines assignments for students to create their own periodic tables and presentations on periodic properties.
The document discusses the organization and structure of the periodic table. It describes how elements are arranged based on their atomic structure and properties. Elements are organized by increasing atomic number and grouped according to similar characteristics. The periodic table displays the symbols, names, atomic numbers and masses of each element.
The document discusses the organization and structure of the periodic table. It describes how elements are arranged based on their atomic structure and properties. Elements are organized by increasing atomic number and grouped according to similar characteristics. The periodic table displays the symbols, names, atomic numbers and masses of each element.
This document differentiates between elements and compounds. An element is made of only one type of atom and cannot be broken down further, while a compound is made of two or more elements. The periodic table arranges elements and provides information about their properties. Common elements include metals like copper, iron, magnesium, and calcium, as well as nonmetals like chlorine, carbon, and fluorine. Compounds are named according to set rules based on the elements they contain and whether oxygen is present. Examples are given of both elements and compounds.
This document discusses elements and the periodic table. It provides examples of elements that exist in solid, liquid and gas states. It explains that elements can be grouped based on similar properties, and that Dmitri Mendeleev created one of the first periodic tables by arranging the 63 known elements in order of atomic mass. The modern periodic table is based on Mendeleev's work and groups elements according to atomic number. It provides examples of common element symbols and how they are derived from Latin names, English names or names of scientists.
CBSE - This ppt is made by referring the concepts of Living Science (Ratnasagar) .
For instant Assessment,after every sub -topic Recap slides are added to test students knowledge.
Reflection Of Consumer Chemistry.pdfReflection Of Consumer ChemistryLaura Benitez
1. The experiment tested the solubility of alkaline earth metal nitrates (Mg, Ca, Sr, Ba) and lead nitrate in various solutions to observe periodic trends.
2. The alkaline earth metals became less soluble from Mg to Ba as atomic radius increased down the group. Lead reacted differently than the alkaline earth metals in some tests.
3. A systematic error occurred when the student observed a reaction between barium and iodide that should not have occurred, likely due to an improperly cleaned test tube.
There are three main states of matter: solids, liquids, and gases. Solids have a fixed shape and volume, and their particles cannot move around freely but vibrate in place. Liquids have a fixed volume but can flow and take the shape of their container. Gases have neither a fixed shape nor volume, and their particles move freely and are spread out. The properties that distinguish these three states are important to understand the structure and behavior of matter.
Elements are pure substances that cannot be broken down further through chemical or physical means. There are currently 118 known elements, with new ones occasionally being discovered through artificial nuclear reactions. Elements are identified by their atomic number, which represents the number of protons in the nucleus. Elements are the basic building blocks of all matter and are used to create thousands of materials, though some like plutonium are also used in nuclear weapons due to their radioactive properties.
History Of The Periodic Table Of ElementsJill Ailts
The periodic table arranges chemical elements in order of increasing atomic number and displays recurring trends in their properties. This lab report describes two activities where students observed physical properties of elements and used the periodic table to arrange and identify elemental cards based on patterns in atomic structure. Materials included samples of common elements like calcium, sulfur, and aluminum for the first activity, and periodic table cards for the second. The goal was to familiarize students with the organization and trends shown in the periodic table.
This document provides information about atoms in the periodic table. It begins with background on the development of the periodic table by scientists like Döbereiner, Newlands, and Mendeleev. Mendeleev organized the elements in a table based on atomic mass, leaving spaces for undiscovered elements. The periodic table arranges elements in rows (periods) and columns (groups) according to atomic structure. Elements in the same group have the same number of outer shell electrons and similar properties. The document defines key terms and explains how elements are named, grouped as metals/nonmetals/metalloids, and classified into groups based on their location in the periodic table.
This document provides an overview of elements, compounds, and how they relate. It defines elements as pure substances made of single atom types, while compounds are formed when two or more different elements bond together. Elements are represented by symbols on the periodic table and have distinct properties based on their atomic structure. Compounds have new properties and are represented by formulas showing the elements present and their ratios. The document explains how ionic and covalent bonds form compounds from elements and provides examples of common elements, compounds, and how to determine compound formulas from their constituent ions.
This document provides an outline for a lesson on transition metals and complex ions. It includes:
1) A review of trends in the d-block elements from Topic 3.
2) An explanation of what defines a transition metal and their common properties.
3) A discussion of how transition metals can form complex ions with variable oxidation states and an investigation of complex ions.
4) An explanation of why complex ions are often colored due to d-orbital splitting effects.
This document provides objectives and content for a chemistry unit on ionic and molecular compounds. The objectives include describing how ions combine to form compounds, writing formulas, determining compound types, naming compounds, writing formulas for compounds containing polyatomic ions, determining ion charges, naming compounds from formulas, and testing ions in solutions. The content reviews ionic bonding, writing formulas, naming binary ionic compounds and those containing polyatomic ions, determining ion charges, acid and base naming, and molecular compound naming. It also outlines labs to identify common ions and practice these skills.
The document summarizes key concepts about the periodic table, including its history and development. It describes how Mendeleev organized the elements and made predictions that were later confirmed, establishing the periodic law. Over time, the periodic table was refined as new elements were discovered and atomic number was established as the basis for organization. The document also outlines periodic trends in properties like atomic radius, ionization energy, and electronegativity.
1) The periodic table was developed in the 1860s by Russian chemist Dmitri Mendeleev to show relationships between elements.
2) Mendeleev arranged elements by atomic mass and was able to predict properties of undiscovered elements.
3) The modern periodic table is arranged by atomic number instead of mass and new elements have been discovered and added over time.
An introductory presentation to the periodic table I gave to my children's 5th grade classes. If you enjoy it, please, use it in your own class, if you are a teacher, or, use it to give a similar talk at your children's elementary school.
The document contains a word scramble activity using element symbols. It provides the scrambled element combinations and clues to figure out 4 words. The answers are:
1. RETINA (Sodium + Titanium + Rhenium)
2. PERSON (Sulfur + Nitrogen + Phosphorous + Oxygen + Erbium)
3. CABIN (Calcium + Indium + Boron)
4. POKER (Erbium + Polonium + Potassium)
The document contains a word scramble activity using element symbols. It provides the scrambled element combinations and clues to figure out 4 words. The answers are:
1. RETINA (Sodium + Titanium + Rhenium)
2. PERSON (Sulfur + Nitrogen + Phosphorous + Oxygen + Erbium)
3. CABIN (Calcium + Indium + Boron)
4. POKER (Erbium + Polonium + Potassium)
The document summarizes a presentation about the periodic table given by Lisa Allen at Stonington High School. It discusses the early development of the periodic table by scientists like Cannizzaro, Mendeleev, and others. Mendeleev was able to organize the elements into the first recognizable periodic table based on their atomic masses and chemical properties. He even predicted the properties of yet-to-be discovered elements. The document then outlines assignments for students to create their own periodic tables and presentations on periodic properties.
The document discusses the organization and structure of the periodic table. It describes how elements are arranged based on their atomic structure and properties. Elements are organized by increasing atomic number and grouped according to similar characteristics. The periodic table displays the symbols, names, atomic numbers and masses of each element.
The document discusses the organization and structure of the periodic table. It describes how elements are arranged based on their atomic structure and properties. Elements are organized by increasing atomic number and grouped according to similar characteristics. The periodic table displays the symbols, names, atomic numbers and masses of each element.
Similar to SLM # 5 -Grade-7-Sceince-1st-Quarter-Elements-and-the-Periodic-Table.docx (20)
This presentation was provided by Steph Pollock of The American Psychological Association’s Journals Program, and Damita Snow, of The American Society of Civil Engineers (ASCE), for the initial session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session One: 'Setting Expectations: a DEIA Primer,' was held June 6, 2024.
This presentation includes basic of PCOS their pathology and treatment and also Ayurveda correlation of PCOS and Ayurvedic line of treatment mentioned in classics.
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar Kanvaria
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
How to Build a Module in Odoo 17 Using the Scaffold MethodCeline George
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
How to Fix the Import Error in the Odoo 17Celine George
An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
1. Republic of the Philippines
Department of Education
REPUBLIC COLLEGES OF GUINOBATAN, INC.
G. Alban Street, Iraya, Guinobatan, Albay
E-mail Address: republiccolleges@yahoo.com
CP No.:0946-419-3153
Science 7
Quarter 1 – Module 3 Elements
and the Periodic Table
Name:
2. 2
All the things around us - from the air we breathe
to the book we are holding - are made of elements and
compounds. The elements that scientists have
discovered are organized in the Periodic Table of
Elements. The periodic table helps us become familiar with
the properties of the elements.
Getting to know the elements and its periodic
table is like having a very important map which is a key
to unlocking the treasures in Chemistry.
Do you want to acquire this map? Read on and
perform the activities prepared for you in this module.
At the end of the module, you should be able to:
Supplementary Learning Module for Junior High School Learners
LESSON
ELEMENTS AND THE PERIODIC TABLE
Identify the names and symbols of elements in the
periodic table.
Familiarize the location and family/group number of
elements in the periodic table.
3. 3
Hi! How did you find the test?
Please check your answers in the answer key section and
see how you did. Don’t worry if you got a low score, this just
means that there are more things that you can learn from
this module. So, hop on!
d. Sc
Directions: Identify what is being asked or described in each
item. Write the letter of the correct answer.
1. What element has the symbol Cl?
a. Carbon
b. Calcium
c. Chlorine
d. Cobalt
2. Which of the following elements has the ancient name of Argentum?
a. Mercury
b. Silver
c. Lead
d. Iron
3. How many elements are there in the Periodic Table?
a. 201
b. 192
c. 118
d. 100
4. The following elements belong to the same group, EXCEPT ONE. Which element is it?
a. Magnesium
b. Calcium
c. Radium
d. Zinc
5. Which of the following is the symbol of Sulfur?
a. S
b. Si
c. Sr
4. 4
THE SAGA OF THE GOLD DUST KID
Directions: Read the story The Saga of the Gold Dust Kid and fill in the blanks with the words that
correspond to the letter symbols. Do this by:
1. Looking for the given letter symbol on the special tool located on page X.
2. Writing the word below the letter symbol. (Example:
letter symbol: H; word: Hydrogen)
1. What is the name of the kid’s horse?
2. In what city was the kid headed to?
If your answer to question 1 is Boron and your answer to question 2 is Samarium, then you are on
the right track! You can now proceed to the next paragraphs.
Inhaling a deep breath of O , he coughed on the
S blowing from the nearby mills.
The Hg was falling yet he thirsted. He drank a lot
of water and tasted the Cl all big cities have. He
headed north and felt his bones ache from Ar
deposit build-up due to years of riding
the Zn trail.
An artist, drunk with wine full of ethyl alcohol and semi-
poisoned from the Cd deposits in his body
waved him on. He noticed a faint spark from a distance
made by the burning of methane and
P compounds but it did not scare him.
The kid rode his favorite horse named B .
Strapping his shooting Te to his side, he
headed out for the Ne -lit city of
Sm .
5. 5
He rode on until he spotted the bank rumored to be the
safekeeping place of a Pt bell. A lone sheriff with a Sn
badge guarded it. “Freeze,” the
kid yelled, “or I’ll fill you up with Pb
! The sheriff drew his Cr plated gun,
but he was too slow. (Continued on the next page)
The kid’s gun blazed like flaming Mg in the
moonlight. A barmaid with hair that shone like
Cu ran as fast as she could when the kid pulled
out some N compound from his saddlebag threatening to
blow into pieces an
Al coach that stopped by.
Amidst all the confusion, a shout rang out, “Hi ho Ag
and a masked man on a silvery horse raced
across the Si sands like Na
skittering in the water. He was the famous
Lone Ranger who delivers justice with an Fe
hand. The kid tried to resist the arrest but he was
powerless against the lawman who would not have been
stopped even by a U bomb.
The kid has met his doom and he was to spend his life
kicking dust behind Co steel bars.
Peace was once again restored.
A warning to all those who flirt with danger: Your evil
intention may be the initial step in a C copy life of
the saga of the Au dust kid.
END
7. 7
Great job! You have finished the activity! Now, take time to process
the information you acquired by accomplishing the next task.
Directions: On the table are some of the words you encountered during the activity. Fill in the table by
writing the corresponding letter symbols and your idea or knowledge about the given words (this can
be based on what you hear in day-to-day conversations or from advertisements on television).
Letter symbol My idea about this word
Oxygen
Chlorine
Zinc
Iron
Gold
Guide questions:
1. Are you familiar with those words? Why do you think you are familiar with them?
2. How did the special tool help you in your task earlier?
The words you have identified in the activity are called elements, and the special tool you used is
called the Periodic Table of Elements. The first lesson will teach you what elements are and how
they are represented in Chemistry.
8. 8
The elements are the simplest form of matter. From elements, more complex substances
are formed and hence form everything around us. Being the simplest form of matter, elements can
no longer be broken down into smaller components physically or chemically. Do you think water
can still be broken down into smaller components? Yes, it still can. The electrolysis of water will
separate H2O into H2 and O2. (2H2O (l) 2H2 (g) + O2 (g)). But Hydrogen and Oxygen both cannot be
broken down further into smaller components. In this example, we can also see that Hydrogen and
Oxygen are the elements that makeup water. But it isn’t just water that elements form, they form
everything!
Each element is made up of one type of atom and has a set of properties unique from
another. This means that no two elements have the same set of properties. These properties and
other information about the elements are summarized in a special tool created by scientists called the
Periodic Table of Elements.
The Periodic Table lists all 118 elements
known at present. It provides information about the
elements like atomic number, atomic mass,
electronegativity, and ionization energy (You will learn
about this in the succeeding grade levels.). The
elements are arranged from left to right and top to
bottom in order of increasing atomic number.
Usually, as the atomic number increases, the atomic
mass increases, too.
Scientists used letters to represent elements to make it
easier for us to be familiar with them. These letters are called
symbols.
Symbols of elements can be one letter or two letters.
Elements like Boron, Oxygen, and Sulfur have one letter symbol taken from their first
letters. (Boron = B, Oxygen = O, Sulfur = S).
Other symbols are taken from the first two letters of the element name. Like Li for
Lithium, Co for Cobalt and Ca for Calcium.
There are also two-letter symbols which consist of the first letter of the element followed
by another letter found in the element name. Examples of these are: Chlorine = Cl,
Zinc = Zn, and Cadmium = Cd.
9. 9
Thus, usually an element symbol is one letter only, that is the first letter of the element name, or
two letters which consist of the first letter and another letter found in the element name. However,
there are also elements that have peculiar symbols like Iron whose symbol is Fe. It is because some
symbols of the elements are taken from their ancient names. Iron has an ancient name of
ferrum, hence the symbol Fe. Below is a table that shows the ancient names of some elements and
their symbols.
Elements with Ancient Names
Ancient name Element Symbol
Argentum Silver Ag
Aurum Gold Au
Cuprum Copper Cu
Ferrum Iron Fe
Hydrargyrum Mercury Hg
Kalium Potassium K
Natrium Sodium Na
Plumbum Lead Pb
Stannum Tin Sn
Stibium Antimony Sb
Wolfram Tungsten W
Remember: Element symbols always start with a big letter followed by a small letter (in
case of two-letter symbols).
Do you understand now what elements are and how they are represented? Do you think you
can use the Periodic Table to identify the names and symbols of elements? Let us find out in the
succeeding activity.
11. 11
I - Directions: Write the
symbol of the given
elements. (You may
refer to the periodic
table)
1. Beryllium
2. Cobalt
3. Carbon
4. Iodine
5. Neon
6. Silver
7. Lead
8. Polonium
9. Yttrium
10. Radon
11. Astatine
12. Phosphorus
13. Platinum
14. Ruthenium
15. Tin
II - Write the name of the following element symbols. (You may refer to the periodic table)
1. Cl
2. Ar
3. F
4. Cu
5. Fe
6. W
7. Xe
8. Mo
9. Ru
10. Mg
11. Zn
12. As
13. S
14. V
15. Mn
III - Directions: The following are words consist of symbols of different elements. Name the
elements that make up these words. Example: PLaCe = Phosphorus, Lanthanum, Cerium. You
may refer to the periodic table.
A - Average
1. YOU
2. KNIFe
3. ClOCK
4. CaNDy
5. POISON
6. WAtCH
7. VIRuS
8. TeAm
9. HYMn
10. FIRe
If you think you got it now, proceed with the following words.
B - Advanced
1. MoUNTaIn
2. AlCoHOLiC
3. AmErICaN
4. ArGeNTiNa
5. AsPIrIn
6. CYClONe
7. DyNAmITe
8. PIRaTe
9. SiCKNeSS
10. VIRuS
13. 13
LET’S GET ORGANIZED!
Directions:
1. Look for five (5) objects at home that seem to be scattered or disorganized.
2. Pick them up and organize them.
3. List at least three (3) objects that you find close to the object you picked up after
organizing them.
4. Fill out the table.
Objects I picked up Objects I placed them with
Example: spoon Fork, plates, knives
1. What was your basis in putting together those objects you picked up?
2. Is it organized to do so? Why?
14. 14
Over the years, scientists have discovered plenty of information about the elements and
finding a way of organizing them had been a difficult task. Until the periodic table of elements was
proposed by Dmitri Mendeleev. Now, elements are arranged in such a way that their location in the
periodic table can tell us information about their behavior or properties. Find out more about this in the
succeeding section.
Scientists logically arranged the elements in the periodic
table. Doing so allowed us to have an idea about the properties of
some elements by knowing the properties of other elements related
to them. Thus, knowing where an element is located in the periodic
table can give us information about its properties. This means that
there is no need to memorize the periodic table, but it is an
advantage to be familiar with it.
The columns of elements in the periodic table are called
family or group. These columns are numbered 1 to 18 from left to
right. Each family or group has a corresponding group number. For
example, the first column is called Group 1, the second column,
Group 2 and so on. Elements found in the same column in the
periodic table have similar
properties. Therefore, Oxygen and Sulfur, which are group 16 elements have similar properties with
Selenium, Tellurium, Polonium and Livermorium.
ODD ONE OUT
Directions: Write the name of the element which does not belong to the group/family.
1. Germanium, Lead, Polonium, Carbon
2. Strontium, Arsenic, Bismuth, Phosphorus
3. Neon, Osmium, Xenon, Krypton
4. Barium, Iodine, Fluorine, Chlorine
5. Calcium, Magnesium, Radium, Zinc
15. 15
To strengthen what you have learned in this module, perform the following additional tasks.
1. Watch this video of the periodic table song. https://youtu.be/rz4Dd1I_fX0
2. Using the word ELEMENTS, make an acrostic about the things you learned in today’s lesson.
(An acrostic is a short poem that uses the letters of the given word as the first letter of the lines
in the poem).
Example acrostic “Gold”
G-Gold is one element I truly know
O-Older than my great great grandparents, lo! L-Listed
among the others in the periodic table D-Dear to those
who love gems and jewels
Congratulations on finishing the supplementary
learning module! You have just had an amazing learning
journey, and for sure, you will have the same in the
succeeding modules.
This time, share to the class your final insights
by completing the following sentence prompts.
,
16. 16
The following terms used in this module are defined as follows:
Atomic Number – the number of protons in an atom
Atomic Mass – the amount of matter contained in an atom of an element.
Elements – are chemically the simplest substance and hence cannot be broken down using chemical
reactions.
Group/Family – the columns in the periodic table that are numbered 1 to 18 from left to right.
Periodic Table of Elements – the organized array of all the chemical elements in order of increasing
atomic number.
Symbol – (chemical symbol) a short notation derived from the name of a chemical element.
Directions: Give what is asked or described in each item by writing the letter of the correct answer. (You
may refer to the periodic table).
1. What element has the symbol Cl?
a. Carbon
b. Calcium
c. Chlorine
d. Cobalt
2 Which of the following elements belong to group 1?
a. Neon
b. Iodine
c. Lithium
d. Potassium
3. How many elements are there in the Periodic Table?
a. 201
b. 192
c. 118
d. 100
4. The following elements belong to the same group, EXCEPT ONE. Which element is it?
a. Zinc
b. Radium
c. Calcium
d. Magnesium
5. Which of the following is the symbol of Sulfur?
a. S
b. Si
c. Sr
d. Sc