p31,32,33 Questions and indexed

p31,32,33 Questions and indexed - 15. 32 1 What is an atom?...

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Joseph Leonard – 9/21/07 – p31,32,33 Questions and Indexed 1. 31 – 1 What is everything in the universe made from? 2. 31 – 1 What is matter? 3. 31 – 1 What is mass? 4. 31 – 1 Are mass and weight the same thing? 5. 31 – 1 What is the pull of gravity on an object? 6. 31 – 1 Would mass or weight change if you were on the moon? 7. 31 – 2 What is essential to all life processes? 8. 31 – 2 Why do biologists study chemistry? 9. 31 – 3 What are elements? 10. 31 – 3 About how many elements have been identified so far? 11. 31 – 3 How many are important to living things? 12. 31 – 3 Which four elements are 90% of mass of all living things? 13. 31 – 4 What does each element have? 14. 31 – 4 What does a chemical symbol consist of?
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Unformatted text preview: 15. 32 1 What is an atom? 16. 32 1 What determines the structure and properties of matter? 17. 32 2 What are models of atoms meant to show? 18. 32 3 What is a nucleus? 19. 32 3 What is a proton? 20. 32 3 What is a neutron? 21. 32 4 What is an atomic number? 22. 32 4 Where does the atomic number generally appear? 23. 32 5 What is the number of positively charged protons balanced by in an atom? 24. 32 6 What are electrons? 25. 32 6 What are energy levels? 26. 33 1 What is a pure compound? 27. 33 3 What are chemical reactions? 28. 33 3 What are bonds? 29. 33 4 What is a covalent bond? 30. 33 5 What is a molecule?...
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