Chapter 16 Vocabulary

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Across
  1. 3. subatomic particle with no charge
  2. 7. element with different number of neutrons
  3. 8. aka Lewis Dot Diagram;shows the symbol for the element & the valence electrons
  4. 11. smallest basic unit of matter
  5. 12. number of protons
  6. 13. takes up most space in atom where electrons are
Down
  1. 1. center of atom with protons & neutrons
  2. 2. average of all isotopes (or mass numbers) of an element
  3. 4. shows protons & neutrons in the nucleus & electons in the shells
  4. 5. subatomic particle with negative charge
  5. 6. horizontal rows on Periodic Table that have the same number of elctron shells
  6. 9. aka family; vertical columns on Periodic Table that have the same number of valence electrons
  7. 10. number of protons & neutrons for a specific isotope