Chapter 4 + 9 Vocab. Puzzle

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Across
  1. 7. Opposite of Proton
  2. 8. Group 17
  3. 10. The amount of protons in an element
  4. 12. An atom that has lost or gained electrons
  5. 13. opposite of cation
  6. 14. Different forms of an element
Down
  1. 1. electrons in the outer orbital
  2. 2. Neutral particle in an atom
  3. 3. The amount of matter in an element
  4. 4. Can be called iron, silver, or gold
  5. 5. opposite of anion
  6. 6. Gas non reacting gases
  7. 9. Opposite of Electron
  8. 11. Can also be called a gas
  9. 15. light energy particles