Chemistry Revision

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Across
  1. 1. The number of protons
  2. 3. The number of protons and neutrons
  3. 5. Loss of electrons
  4. 7. A soluble base.
  5. 8. Elements found in group 7
  6. 10. A more reactive element takes the place of a less reactive element.
  7. 12. Sodium + water -> sodium hydroxide + .........
Down
  1. 2. The colour of bromine in solution.
  2. 4. Elements found in group 8
  3. 6. HNO3
  4. 8. The chemical formula for hydrochloric acid
  5. 9. Charged atom or group of atoms
  6. 11. bromine + sodium iodide -> sodium bromide + ......