Chemistry

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Across
  1. 3. electrons in outer orbital
  2. 6. when a new substance is created
  3. 9. I make up the parts of an atom
  4. 11. mixtures that have only one visible part
  5. 13. an atom with a net electric charge
  6. 14. have an positive charge in the atom
  7. 16. a substance that is made of only one kind of atom
  8. 17. characteristics that are used to describe a substance
  9. 18. a subatomic particle that has no charge
Down
  1. 1. a subatomic particle that has a positive charge
  2. 2. mixtures that have two or more visible parts
  3. 4. is when the form or state of a substance is changed
  4. 5. two or more elements that combine to form a substance
  5. 7. the degree of shininess of an object
  6. 8. how a substance reacts with something else
  7. 10. the number of protons in the nucleus of the atom
  8. 12. the ability to be dissolved easily
  9. 15. number of protons and neutrons in the nucleus