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This document discusses the basic chemistry concepts of matter, elements, compounds, and atoms. It defines key terms like chemical symbol, formula, and equation. Atoms are made up of protons, neutrons, and electrons. The periodic table organizes elements and provides atomic number, mass number, and information about chemical properties. Elements in the same group on the periodic table have similar chemical properties. Electrons determine an element's chemical reactivity, with most elements seeking to obtain a full outer electron shell of 8 electrons.
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The document provides information about the periodic table of elements, including:
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2) Key information included in each element square is discussed, such as atomic number, symbol, atomic mass, and valence electrons.
3) The properties of metals, non-metals, and metalloids are outlined.
4) The document explains the patterns in the periodic table, including periods and families (groups).
periodic_table element chemistry pptx jjc
The document provides information about the periodic table of elements, including:
1) It describes how the periodic table organizes 118 known elements according to their atomic structure and properties.
2) Key aspects that are organized in the table include the element's atomic number, symbol, atomic mass, number of valence electrons, and state of matter.
3) Understanding the periodic table allows one to predict an element's physical and chemical properties and reactions.
periodic_table.ppt
The document provides information about the periodic table of elements, including:
1) It describes how the periodic table organizes 118 known elements according to their atomic structure and properties.
2) Key aspects that are organized in the table include the element's atomic number, symbol, atomic mass, number of valence electrons, and state of matter.
3) Understanding the periodic table allows one to predict an element's physical and chemical properties and reactions.
periodic_and properties.ppt
The document provides information about the periodic table of elements, including:
1) It describes how the periodic table organizes 118 known elements according to their atomic structure and properties.
2) Key aspects that are organized in the table include the element's atomic number, symbol, atomic mass, number of valence electrons, and state of matter.
3) Understanding the periodic table allows one to predict an element's physical and chemical properties and reactions.
periodic table of elements power point presentation
The document provides information about the periodic table of elements, including:
1) It describes how the periodic table organizes 118 known elements according to their atomic structure and properties.
2) Key aspects that are organized include the element's atomic number, symbol, atomic mass, number of valence electrons, and state of matter.
3) Understanding the periodic table allows one to predict an element's physical and chemical properties and reactions.
Biology the atom
The document discusses the composition and structure of matter. It defines matter as anything that has mass and volume, and discusses the basic components of atoms including protons, neutrons, and electrons. It explains how elements are made up of atoms with distinct numbers of protons, and how atoms can bond to form compounds. The periodic table is introduced as a way to organize the elements based on their atomic structure.
Fundamentals of Atoms, Molecules and Ions
Hello everyone, I am Dr. Ujwalkumar Trivedi, Head of Biotechnology Department at Marwadi University Rajkot. I teach Molecular Biology to the students of M.Sc. Microbiology and Biotechnology.
The current presentation is about the historical perspectives of the discovery of atoms and subatomic particles. The later part of the presentation describes various atomic models and the properties of subatomic particles with a description of commonly used terms like molecules, ions and compounds.
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some basic concepts of chemistry class 11 study material pdf download
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Structures-of-an-Atom-and-Periodic-Table-Handouts.pptx
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periodic table of elements power point presentation
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More from Maria Donohue
Syllabus
This document is a syllabus for Cambridge International A & AS Level Biology. It outlines the aims, assessment objectives, content, and assessment details of the course. The aims are to provide students with an educational experience in biology, develop relevant skills and attitudes, and stimulate interest in biology. The course is assessed through multiple choice, structured, and practical exam papers that test knowledge, handling information, and experimental skills. The syllabus content is divided into core topics and applications.
Extra credit 2011 2012
This document outlines two extra credit opportunities for Ms. Donohue's class: Classroom Supply Extra Credit and Novel Extra Credit. For Classroom Supply Extra Credit, students can receive points for donating classroom supplies like copy paper, dry erase markers, or latex gloves, with a maximum of 25 points. For Novel Extra Credit, students can receive 20 points for donating their copy of one of the specified class novels.
Cambridge biology syllabus
This document is a syllabus for Cambridge International A & AS Level Biology. It outlines the aims, objectives, content, and assessment of the course. The aims are to provide students with an understanding of biology, scientific skills, and interests in further study. Students can take AS exams after 1 year or complete the full A Level after 2 years. Assessment includes multiple choice, structured questions, practical exams, and essays. The content covers core biological principles and applications.
Hominid evolution part
Hominids first appeared between 6-7 million years ago in Africa and have evolved several times as evidenced by fossil records. Key adaptations throughout hominid evolution include bipedal locomotion, increasing brain size, facial structure changes, decreasing jaw and tooth size, opposable thumbs, and tool usage. The earliest known hominid genus is Australopithecus, followed by species like Homo habilis, Homo erectus, Homo sapiens, and Homo neanderthalensis, with modern humans emerging in the last 10,000 years.
Nonrenewable energy
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help boost feelings of calmness, happiness and focus.
Pesticides and biodiversity
The document discusses several topics related to forest and land management:
1. It defines conservation biology, uneven-aged management, even-aged management, intrinsic value, instrumental value, old-growth forest, second-growth forest, tree plantations, deforestation, and ecological restoration.
2. It notes that old-growth forests are found primarily in western US, Russia, Brazil, Canada, and Indonesia. Most of the world's forests are secondary growth. Clear-cutting increases soil erosion and sediment pollution.
3. Large reserves support more species diversity than small reserves. Population size determines environmental impacts, usually negative. Urbanization is a main cause of arable land and biodiversity loss.
Water presentation gloria wilfredo
Water is a vital resource that sustains life. Freshwater sources include groundwater, which infiltrates underground, and surface water. Groundwater depletion can occur when withdrawals exceed recharge, causing water tables to fall and land to subside. Increasing supplies involves desalination or reverse osmosis. Water pollution reduces water quality and harms organisms. Major pollutants include pathogens, nutrients, chemicals, sediments and heat. Pollution can be from point sources like factories or nonpoint sources like runoff. Treating sewage reduces pollution levels. Large-scale water diversions for uses like irrigation and cities can deplete rivers and harm ecosystems.
Jasmine aquatic diversity
The document provides information about aquatic biodiversity including definitions of key terms like plankton, nekton, benthos, and decomposers. It also discusses aquatic ecosystems like coastal zones, wetlands, and intertidal zones. Multiple choice questions test comprehension of topics like ocean acidification, plankton types, eutrophic lakes, and aquaculture. A free response question asks why aquatic plants tend to be smaller while some marine mammals are extremely large.
Human health alfredo and dalyn
The document summarizes different types of waste (hazardous, solid), waste disposal methods (open dumps, sanitary landfills, incineration), types of recycling (primary, secondary, composting), types of radioactive waste (high level, low level), types of environmental hazards (biological, chemical, physical, cultural, lifestyle), specific biological and chemical hazards, and cultural and lifestyle hazards. It also includes multiple choice questions about these topics.
Energy efficiency and renewable energy gabriel riley
Here are responses to the questions about hydroelectric power:
a) The series of energy transformations in a hydroelectric plant are:
1) Potential energy of water stored behind the dam is converted to kinetic energy as water flows through pipes/turbines.
2) The kinetic energy of flowing water is used to spin turbines.
3) The spinning turbines are connected to generators which convert the kinetic energy of the spinning turbines into electrical energy.
b) Once a hydroelectric dam is constructed, the source of fuel (falling water) is replenished by nature through the water cycle. As long as rainfall continues to fill reservoirs, the dams can generate electricity without incurring significant ongoing fuel costs.
c) One species
Amamda and robert air pollution and ozone ppt
Here are multiple choice samples from past AP Environmental Science exams:
1998 Exam:
1. Which of the following best describes the greenhouse effect?
A) Gases in the atmosphere allow visible light to pass through but absorb infrared radiation, warming the lower atmosphere.
B) Gases in the atmosphere absorb all wavelengths of electromagnetic radiation, trapping heat near the surface of the Earth.
C) Gases in the atmosphere reflect most visible light and infrared radiation back into space, preventing warming of the lower atmosphere.
D) Gases in the atmosphere allow most infrared radiation to pass through into space, preventing significant warming of the lower atmosphere.
E) Gases in the atmosphere absorb visible light but allow most infrared radiation to
Embryology and reproduction
1. Fertilization occurs when a sperm cell fuses with an egg cell to form a zygote. The zygote then undergoes cleavage and develops into a morula, blastula, and then a gastrula with three germ layers.
2. The embryo develops organs and tissues during the first trimester and is then referred to as a fetus. It continues to grow and develop throughout the second and third trimesters.
3. The male and female reproductive systems produce and transport gametes through various glands and structures. In females, eggs mature in the ovaries and travel through the fallopian tubes, while in males sperm mature in the testes and epididymis and
Evolution part 3
Hominids first appeared between 6-7 million years ago in Africa. They have evolved several times, as evidenced by fossil records. Key adaptations in hominid evolution included bipedal locomotion, larger brains and cranial capacities, changes in skull shape and jaw size, and opposable thumbs. Major hominid species included Homo habilis, Homo erectus, Homo sapiens, and Homo neanderthalensis. Homo sapiens are the only surviving hominid lineage.
Evolution part 2
Evolution is the process by which species change over time based on genetic variations and natural selection. Organisms must compete for limited resources and reproduce, so individuals with traits better suited to their environment are more likely to survive and pass on their genes. Evidence for evolution includes fossils that show how species have changed over millions of years, as well as anatomical and genetic similarities between organisms that indicate common ancestry. Darwin proposed that evolution occurs through natural selection, where individuals with advantageous traits are more likely to reproduce and leave more descendants.
Evolution part1
The document discusses the origins of life on Earth. It describes the early conditions on the primitive Earth that allowed for life to emerge, including the presence of liquid water, moderate temperatures, sunlight, and gases like carbon dioxide and methane in the atmosphere from volcanoes. Early life forms like bacteria emerged around 3.8 billion years ago. The document then discusses theories for how life began like spontaneous generation, the Miller-Urey experiment that produced amino acids from conditions simulating early Earth, and chemical evolution in underwater vents. Early life was in the form of prokaryotes for over a billion years before oxygen accumulated in the atmosphere around 2 billion years ago due to photosynthesis by cyanobacteria, allowing for more complex aerobic life
Evolution
The document discusses the origins of life on Earth and the evolution of species over time. It describes the early conditions on Earth that allowed life to form, including the presence of water, moderate temperatures, and various gases like carbon dioxide. It explains how early life forms like prokaryotes evolved and how oxygen began accumulating in the atmosphere due to photosynthetic bacteria. It also summarizes key ideas in Darwin's theory of evolution by natural selection, including inherited variation within populations, the struggle for existence, differential reproduction of offspring, and descent with modification over generations.
#2 villalobos brain, heart, reproductive syste and embryo development
The document discusses the nervous system and its major divisions - the central nervous system (CNS) and peripheral nervous system (PNS). The CNS includes the brain and spinal cord and controls the body's functions. The brain is made up of the cerebrum, cerebellum, and thalamus. The PNS includes nerves that connect the CNS to other parts of the body and is divided into sensory and motor divisions. The document also discusses the cardiovascular system including the heart, blood vessels, and blood circulation.
#1 donohue immune system, vaccines, and antibiotics
The document summarizes the immune system's three lines of defense against pathogens:
1. Barriers to infection like skin and mucous membranes that keep pathogens out of the body.
2. The inflammatory response that responds when pathogens enter, causing swelling and fever to fight the infection.
3. The immune response involving specialized white blood cells like macrophages, T cells, and B cells that mount a specific attack against the pathogen through antibodies and memory cells to prevent future infections.
Donohue dna practice questions
1. The document provides a review of biology concepts related to DNA, RNA, and protein synthesis. It contains 14 multiple choice questions about DNA replication, molecular clocks, sickle cell anemia treatment via gene therapy, DNA's role in controlling cells, transcription errors, the universal genetic code, DNA and RNA structures, transcription, DNA fingerprinting, and cloning human genes in bacteria.
2. Key concepts covered include that DNA replication involves DNA polymerase joining nucleotides to produce two new complementary DNA strands. Molecular clocks can be used to estimate how long ago species diverged from a common ancestor. Gene therapy for sickle cell anemia may involve inserting DNA that provides a blueprint for normal hemoglobin synthesis.
3. DNA in
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Energy efficiency and renewable energy gabriel riley
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#2 villalobos brain, heart, reproductive syste and embryo development
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#1 donohue immune system, vaccines, and antibiotics
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Partecipate alla presentazione per immergervi in una storia di interoperabilità, standard e formati aperti, per poi discutere del ruolo importante che i contributori hanno in una comunità open source sostenibile.
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The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
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Test Automation with generative AI and Open AI.
UiPath integration with generative AI
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5th LF Energy Power Grid Model Meet-up Slides
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Power Grid Model
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Biochemistry
- 1. Chemistry of Life Exploring Life Chapter 4 By M. Donohue
- 2. Chemistry in Biology??? -Biology is…and all living things are made up of….MATTER! The study of matter and the changes it under goesAre living things changing? Chemistry Anything that takes up space (V) and has mass (g) Composed of one or more elements Matter Pure substance that cannot be broken down into other substances by chemical means“basic ingredients” of matter; examples gold, helium, oxygen, nitrogen Element Substance containing two OR MORE elements chemically combined in a fixed ratioexample: water, sodium chloride (aka table salt) Compound Smallest possible particle of an element; building block of matter -derived from Greek word “atomos” which means “indivisible” Atom An alternate form of an element; same # of protons, different number of electrons Isotope
- 3. Elements Pure substances About 25 essential elements to life Trace elements Make up less than 0.01% of body mass but are critical -Over 100…92 naturally occurring and the rest are synthetic/man-made -made up of 1 type of atom Iodine Iron
- 6. Physical Change/properties Color, shape, texture, amount The actual make-up of matter/substance does NOT change Examples Ripping a piece of paper Painting a wall When two substances are combined to create a new substance with new properties different from those that made it up…Combo of different elements Examples Water H2O Sodium chloride NaCl Chemical change/properties Compounds When 2 or more elements are chemically combined in fixed ratios making a new substance with new properties
- 7. Atomic Theory Dalton’s Atomic Theory 1) All matter is made of atoms that are indivisible and indestructible. 2) All atoms of a given element are identical in mass and properties 3) Compounds are formed by a combination of two or more different kinds of atoms. 4) A chemical reaction is a rearrangement of atoms.
- 8. Structure of an Atom -smallest unit of matter that retains properties of element -Atom has an electric charge of zero (all positives equal negatives)
- 10. You can find this on the periodic table
- 11. (smaller # by the element…goes in numerical order)
- 13. (bigger # on PT)
- 15. Columns (that go up and down) are called GROUPS or FAMILIES
- 16. Number your columns…1(H),2, skip all the ones that drop down, 3 (B), 4, 5, 6, 7, 8
- 17. Families share similar characteristicsGroups of friends have similar interests, act the same Elements in the same group/family have the SAME CHEMICAL PROPERTIES They react the same!!
- 19. Electrons are arranged in “orbitals” around the nucleus
- 20. First orbital/ring has a maximum capacity for 2 electrons
- 21. Each ring after has a MAX Capacity for 8 electrons
- 22. VALENCE electrons are the ones in the outer most ring!
- 23. Columns of the periodic table tell you how many valence electrons there areThe ELECTRON Cloud
- 25. # of Electrons
- 26. # of neutrons
- 27. Mass #
- 31. H and He only need 2 to be happy
- 32. 8 valence e- =
- 33. 2 v.e. = for H and He