Y10 Chemistry revision

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Across
  1. 3. The name for the outermost electrons
  2. 5. Atoms have the same number of valence electrons
  3. 10. Can be pulled or stretched into shape
  4. 11. Can be beaten, or hammered into shape
  5. 12. A property of metals
  6. 14. The protons + the neutrons
  7. 15. The number of protons, and also electrons
  8. 17. Found outside the nucleus
  9. 18. Positive charge
Down
  1. 1. 2 or more atoms that are joined
  2. 2. The middle of an atom
  3. 4. Neutral charge
  4. 6. 2 or more different atoms that are joined
  5. 7. Group 17, period 3
  6. 8. Atoms have the same number of energy levels
  7. 9. Group 2, period 3
  8. 13. The max number of electrons in the second energy level
  9. 16. Group 14, Period 2