Chemistry

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Across
  1. 5. What we breath
  2. 6. Part of a element
  3. 7. Has a positive electric charge
  4. 9. A basic part of whole
  5. 10. when a atom loses or gains 1 electron
  6. 11. Made the periodic table
  7. 12. firm and stable in shape
Down
  1. 1. Made up of 1 or more atoms
  2. 2. The study of substances
  3. 3. atoms move freely inside it
  4. 4. When 2 or substances make a new one
  5. 8. Has a neutral charge