Atoms

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Across
  1. 2. - a negatively charged subatomic particle
  2. 3. - a no charge subatomic particle
  3. 4. - building blocks of all matter
  4. 6. - Smallest unit of a molecule
  5. 8. Reaction - a process where two substances mix and can be rearranged
  6. 10. Reaction - a process where two substances mix and can't be rearranged
Down
  1. 1. - a positively charged subatomic particle
  2. 5. - smallest unit of a chemical compound
  3. 7. - takes up space but no definite shape
  4. 9. number- How the whole numbers are arranged on the periodic table