Periodic table
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Dmitri Mendeleev created the periodic table by organizing the known elements based on their atomic masses and properties into periods and groups. He saw a pattern that allowed him to predict properties of undiscovered elements. The periodic table arranges elements into families including non-metals, alkali metals, alkaline metals, transition metals, metalloids, other metals, halogens, noble gases, lanthanides and actinides.
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The periodic table
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2. É dividido em duas partes, com atividades de 20 e 50 minutos cada, utilizando letras de músicas populares.
3. Inclui informações sobre como planejar e conduzir as atividades, além de dicas pedagógicas, respostas e letras das músicas.
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Periodic table keynote
Dmitri Mendeleev organized the periodic table in 1869 to systematically arrange the known elements based on their atomic numbers and chemical properties. The table is organized with elements grouped into rows and periods based on increasing atomic number and similar properties. Examples of elements discussed include oxygen, which is essential for life; gold, which is obtained from the earth's crust; and sodium, which is found in table salts.
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Periodic table
Dmitri Mendeleev created the periodic table in 1869 as an organized way to show the known elements arranged by atomic number and their chemical and physical properties. The periodic table organizes elements into rows and columns called periods and groups based on their valence electrons and similar atomic orbitals within the same period. Examples provided are hydrogen which can power cars, oxygen which is necessary for breathing, and helium which is used to inflate balloons.
Death by TylenolIn 1982, two firefighters from aChicago .docx
Death by Tylenol
In 1982, two firefighters from a
Chicago suburb were casually
discussing four bizarre deaths that had recently
taken place in a neighboring area. As they
discussed the circumstances of the deaths, they
realized that each of the victims had taken
Tylenol. Their suspicions were immediately
reported to police investigators. Tragically,
before the general public could be alerted,
three more victims died after taking poison-
laced Tylenol capsules. Seven individuals,
all in the Chicago area, were the first
victims to die from what has become
known as product tampering. A forensic
chemical analysis of Tylenol capsules
recovered from the victims’ residences
showed that the capsules were filled
with potassium cyanide in a quantity
ten thousand times what was
needed to kill an average person.
It was quickly determined that the
cyanide was not introduced into the bottles
at the factory. Instead, the perpetrator methodically
emptied each of twenty to thirty capsules and then refilled them with
potassium cyanide. The tampered capsules were rebottled, carefully repackaged,
and placed on the shelves of six different stores. The case of the Tylenol murders remains
unsolved, and the $100,000 reward offered by Tylenol’s manufacturer remains unclaimed.
headline news
IS
B
N
1-256-36593-9
, Tenth Edition, by Richard Saferstein. Published by Prentice Hall. Copyright © 2011 by Pearson Education, Inc.
R
O
D
D
Y
,
A
N
T
H
O
N
Y
I
S
A
A
C
3
7
2
7
B
U
After studying this chapter you should be able to:
• Define and distinguish elements and compounds
• Contrast the differences among a solid, liquid, and gas
• Define and distinguish organic and inorganic compounds
• Understand the difference between qualitative and
quantitative analysis
• Describe and explain the process of chromatography
• List and describe the parts of a gas chromatograph
• Explain the differences among thin-layer chromatography,
gas chromatography, and electrophoresis
• Understand the differences between the wave and particle
theories of light
• Describe the electromagnetic spectrum
• Name the parts of a simple absorption spectrophotometer
• Describe the utility of ultraviolet and infrared spectroscopy for
the identification of organic compounds
• Describe the concept and utility of mass spectrometry for
identification analysis
organic analysis
chromatography
compound
electromagnetic
spectrum
electrophoresis
element
fluoresce
frequency
gas (vapor)
infrared
inorganic
ion
laser
liquid
matter
monochromatic light
monochromator
organic
periodic table
phase
photon
physical state
pyrolysis
solid
spectrophotometry
sublimation
ultraviolet
visible light
wavelength
X-ray
KEY TERMS
chapter 5
Le
ar
ni
ng
O
b
je
ct
iv
es
> > > > > > > > > > > >
IS
B
N
1
-2
56
-3
37
10
-2
, Tenth Edition, by Richard Saferstein. Published by Prentice Hall. Copyright © 2011 by Pearson Education, Inc.
R
O
D
D
Y
,
A
N
T
H
O
N
Y
I
S
A
A
C
3
7
2
7
B
U
gas (vapor)
.
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Виральность и игровые механики
Виральность и игровые механики как современные основы интернет-маркетинга успешных проектов.
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The periodic table of elements
The periodic table is an arrangement of the chemical elements based on their properties. Elements are organized by atomic number and similar properties repeat periodically. The periodic table has evolved over time as scientists like Dobereiner, Newlands, Mendeleev, and Moseley discovered patterns in elements and used these patterns to organize the elements. The modern periodic table is a visual representation of the periodic law, which states that properties of elements are periodic functions of their atomic numbers. It provides information about each element's atomic number, atomic mass, electron configuration, and chemical properties.
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This document provides information about chemical compounds and their nomenclature. It defines a chemical compound as a pure substance formed by two or more elements combined in fixed proportions. Examples of common compounds and their chemical formulas are provided. The document then discusses different systems for naming compounds, including classical nomenclature, nomenclature using Roman numerals to indicate elemental valence, and nomenclature using Greek prefixes to indicate the number of atoms present. Specific rules and examples are provided for naming oxides, hydroxides, and peroxides. A series of exercises are included to have the reader practice writing formulas and names according to the various nomenclature systems.
Chemistry periodic table
Dmitri Mendeleev created the periodic table in 1869 to illustrate periodic trends in the properties of known elements. The periodic table arranges elements in rows and columns based on increasing atomic number, electron configuration, and recurring chemical properties. The periodic table shows the relationships between elements based on their atomic number, atomic weight, and chemical and physical properties.
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The document introduces the periodic table of elements by discussing its development and organization. It explains that Dmitri Mendeleev created the first periodic table in 1869, organizing elements by their atomic number, electron configuration, and recurring properties. Elements are presented in order of increasing atomic number and grouped into periods and columns. Examples of oxygen, helium, and iron are provided, noting their atomic numbers, symbols, masses, and common uses.
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Mikhail Vasilyevich Lomonosov recorded the freezing point of mercury, proposed wave theory of light, formulated the kinetic theory of gases.explained about origin of coal, petroleum
Periodic Classification
1. Dobernier's periodic table classified elements into triads based on atomic mass, but could only form three triads.
2. Newlands noticed that every eighth element had similar properties and classified them into octaves, but this only worked until calcium.
3. Mendeleev arranged elements by atomic mass and chemical properties, leaving gaps for undiscovered elements like gallium and germanium. His periodic table was a major improvement over previous classifications.
4. The modern periodic table arranges elements by atomic number, resolving issues with isotopes and incorrect element ordering. Properties are periodic based on electron configuration in the atom.
Chapter 3 - The Chemistry of Transition Metals and Co-ordination Compounds.pdf
The document discusses the history and development of coordination chemistry and organometallic compounds. It mentions that the first organometallic compound, tetramethyldiarsine, was accidentally synthesized in 1757. It also discusses Dorothy Hodgkin's work determining the crystal structure of vitamin B12 in the 1950s-1960s, and that Zeise's salt was one of the first reported organometallic compounds in 1830. The document then covers topics such as the electronic structure of transition metals, nomenclature rules for coordination compounds, isomerism in coordination chemistry, and the expansion of inorganic chemistry in the 1940s sparked by work during World War II.
Periodic table keynote
Dmitri Mendeleev organized the periodic table in 1869 to systematically arrange the known elements based on their atomic numbers and chemical properties. The table is organized with elements grouped into rows and periods based on increasing atomic number and similar properties. Examples of elements discussed include oxygen, which is essential for life; gold, which is obtained from the earth's crust; and sodium, which is found in table salts.
the elements, origin of their names and their symbols
This document discusses the development of chemical symbols and naming conventions. It introduces Antoine Lavoisier who established the first modern chemical textbook and grouped elements by properties. John Dalton proposed the atomic theory and presented the new system of chemical philosophy. Johann Berzelius then invented the present system of chemical symbols. The document also lists common element names and their Latin origins, as well as symbols introduced by these early scientists who helped establish the foundation of modern chemistry.
Osmium Research Paper
Strontium is a soft, silver-gray metal with symbol Sr and atomic number 38 that exists as four stable isotopes in nature, most dominantly strontium-88 which comprises 83% of natural strontium. It is found ubiquitously in minerals like celestite and strontianite, making up about 0.025% of the Earth's crust. While strontium has 16 radioactive isotopes, only strontium-90 has a sufficiently long half-life of 29 years to be of concern to human health.
Periodic table
Dmitri Mendeleev created the periodic table in 1869 as an organized way to show the known elements arranged by atomic number and their chemical and physical properties. The periodic table organizes elements into rows and columns called periods and groups based on their valence electrons and similar atomic orbitals within the same period. Examples provided are hydrogen which can power cars, oxygen which is necessary for breathing, and helium which is used to inflate balloons.
Death by TylenolIn 1982, two firefighters from aChicago .docx
Death by Tylenol
In 1982, two firefighters from a
Chicago suburb were casually
discussing four bizarre deaths that had recently
taken place in a neighboring area. As they
discussed the circumstances of the deaths, they
realized that each of the victims had taken
Tylenol. Their suspicions were immediately
reported to police investigators. Tragically,
before the general public could be alerted,
three more victims died after taking poison-
laced Tylenol capsules. Seven individuals,
all in the Chicago area, were the first
victims to die from what has become
known as product tampering. A forensic
chemical analysis of Tylenol capsules
recovered from the victims’ residences
showed that the capsules were filled
with potassium cyanide in a quantity
ten thousand times what was
needed to kill an average person.
It was quickly determined that the
cyanide was not introduced into the bottles
at the factory. Instead, the perpetrator methodically
emptied each of twenty to thirty capsules and then refilled them with
potassium cyanide. The tampered capsules were rebottled, carefully repackaged,
and placed on the shelves of six different stores. The case of the Tylenol murders remains
unsolved, and the $100,000 reward offered by Tylenol’s manufacturer remains unclaimed.
headline news
IS
B
N
1-256-36593-9
, Tenth Edition, by Richard Saferstein. Published by Prentice Hall. Copyright © 2011 by Pearson Education, Inc.
R
O
D
D
Y
,
A
N
T
H
O
N
Y
I
S
A
A
C
3
7
2
7
B
U
After studying this chapter you should be able to:
• Define and distinguish elements and compounds
• Contrast the differences among a solid, liquid, and gas
• Define and distinguish organic and inorganic compounds
• Understand the difference between qualitative and
quantitative analysis
• Describe and explain the process of chromatography
• List and describe the parts of a gas chromatograph
• Explain the differences among thin-layer chromatography,
gas chromatography, and electrophoresis
• Understand the differences between the wave and particle
theories of light
• Describe the electromagnetic spectrum
• Name the parts of a simple absorption spectrophotometer
• Describe the utility of ultraviolet and infrared spectroscopy for
the identification of organic compounds
• Describe the concept and utility of mass spectrometry for
identification analysis
organic analysis
chromatography
compound
electromagnetic
spectrum
electrophoresis
element
fluoresce
frequency
gas (vapor)
infrared
inorganic
ion
laser
liquid
matter
monochromatic light
monochromator
organic
periodic table
phase
photon
physical state
pyrolysis
solid
spectrophotometry
sublimation
ultraviolet
visible light
wavelength
X-ray
KEY TERMS
chapter 5
Le
ar
ni
ng
O
b
je
ct
iv
es
> > > > > > > > > > > >
IS
B
N
1
-2
56
-3
37
10
-2
, Tenth Edition, by Richard Saferstein. Published by Prentice Hall. Copyright © 2011 by Pearson Education, Inc.
R
O
D
D
Y
,
A
N
T
H
O
N
Y
I
S
A
A
C
3
7
2
7
B
U
gas (vapor)
.
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Periodic table
- 1. THE PERIODIC TABLE By: Nicholas Cochrane
- 2. Who Discovered The Periodic Table? DMITRI MENDELEEV CREATED THE PERIODIC TABLE.
- 3. Where Is He From? HE IS FROM VERKHNIE AREMZYANI, RUSSIAN EMPIRE
- 4. How Did He Get The Idea For How It Works? WHEN LOOKING AT HOW HE COULD ORGANIZE THEM HE SAW A PATTERN.
- 5. How Is It Organized. PERIODS ( VERTICAL) GROUPS (GROUPS) FAMILIES ( SECTIONS)
- 6. What Are The Different Families NON-METALS ALKALI METALS ALKALINE METALS TRANSITION METALS METALLOIDS OTHER METALS HALOGENS NOBLE GASES LANTHANIDES ACTINIDES
- 7. Potassium ATOMIC # : 19 SYMBOL : K ATOMIC MASS : 39.0983 USES : FERTILIZER INFO : ALKALI METAL , OXIDIZES IN AIR
- 8. Argon ATOMIC # : 18 SYMBOL : A r ATOMIC MASS : 39.948 USES : INCANDESCENT LIGHTS INFO : NOBLE GAS , UNDERGOES VERY FEW CHEMICAL CHANGES.
- 9. Hydrogen ATOMIC # : 1 SYMBOL : H ATOMIC MASS : 1 USES : ROCKET FUEL INFO : NONMETAL , BONDS WITH MOST ELEMENTS.
Editor's Notes
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