ch02 - Chapter 2 Chapter Outline INTRODUCTION 1 Consider...

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Chapter 2 Chapter Outline INTRODUCTION 1. Consider how atoms bond together in the body to form molecules. 2. Discover how atoms and molecules release or store energy in processes known as chemical reactions. 3. Discover how water is involved in nearly every chemical reaction. 4. Define matter and mass. HOW MATTER IS ORGANIZED Chemical Elements 4. Identify the principal chemical elements of the human body by their names and chemical symbols. Structure of Atoms 5. Describe each component of an atom in terms of its relative position, charge, and mass. Atomic Number and Mass Number 6. Explain how the atomic number of an atom determines its chemistry because of the amount of attraction by the set number of nuclear positive charges for negative electrons of other atoms. 7. Explain how mass number is related to radioisotopes and atomic weight. 8. Give examples of some beneficial and harmful effects of radiation. Atomic Mass 9. Describe the standard unit for measuring the mass of atoms and their subatomic particles.
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. Ions, Molecules, Free Radicals, and Compounds 10. Distinguish among ions, molecules, free radicals, and compounds. 11. Describe the effects of free radicals on health. CHEMICAL BONDS 12. Describe the significance of the valence shell electrons. 13. Explain the octet rule. Ionic Bonds 14. Explain why and how an atom can lose or gain electrons, and what the resulting balance between numbers of electrons and protons produces, as with sodium and chlorine. 15. Note that when the attraction for electrons (electronegativity) between adjacent atoms is very different, one will pull electrons from the other, which produces oppositely charged ions that are attracted to each other and thus form an ionic bond. 16.
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This note was uploaded on 09/16/2009 for the course BISC BISC 206 taught by Professor Briston during the Fall '09 term at Ole Miss.

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ch02 - Chapter 2 Chapter Outline INTRODUCTION 1 Consider...

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