Chemistry

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Across
  1. 3. a bond between a metal and non metal
  2. 5. the joining of atoms to form new substances
  3. 7. the electrons furthest fron the nucleus
  4. 8. rule the tendency of atoms to prefer 8 electrons in the valence shell
  5. 10. a substance made up of two or more different chemicals
Down
  1. 1. the material that was changed is still structurally the same such as texture or temperature
  2. 2. a group of two or more of the same atoms held together by chemical bonds
  3. 4. the making of a new substance due to a chemical reaction
  4. 6. the building blocks of life
  5. 9. a bond between two non metals