Chemistry

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Across
  1. 2. atom with the same number of protons but a different number of neutrons
  2. 7. lithium+water=_________+hydrogen
  3. 9. OH-
Down
  1. 1. bonds which happen between metals and non metals
  2. 3. made of protons and neutrons
  3. 4. h20
  4. 5. goes on your nails
  5. 6. made up of monomers
  6. 8. mix of metals/carbon