Chemistry

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Across
  1. 2. number of electrons in Helium
  2. 6. A chemical r__________
  3. 8. Negatively charged particle
  4. 9. Fourth state of matter
  5. 10. A charged atom or molecule
  6. 11. Symbol for magnesium
Down
  1. 1. Name of element Ge
  2. 3. When metals react with Oxygen
  3. 4. Inventor of plum pudding model
  4. 5. Sodium Chloride
  5. 7. Another name for Group 0 gases