Introductory Chemistry

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Across
  1. 1. can be negative or positive
  2. 2. a neutral subatomic particle
  3. 3. formed when a molecule loses or gains an electron
  4. 4. the type of chemical bond where electrons are shared
  5. 8. the substances that are present at the beginning of a chemical reaction
  6. 10. the subatomic particle that hangs out in orbitals
  7. 12. a positively charged subatomic particle
Down
  1. 1. the type of chemical bond where electrons are transferred
  2. 4. hold atoms together to make new substances
  3. 5. smallest basic unit of matter
  4. 6. in the center of the atom where protons and neutrons exist
  5. 7. the substances that are present at the end of a chemical reaction
  6. 9. a negatively charged subatomic particle
  7. 11. a pure substance with only one kind of atom