Understanding the Atom

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Across
  1. 3. letter or letters representing elements
  2. 6. characteristic or feature of matter
  3. 7. negative charged subatomic particle
  4. 9. small pieces of matter
  5. 10. has mass and volume
Down
  1. 1. tiny particle that makes up
  2. 2. matter made of only one kind of atom
  3. 4. a neutral charged subatomic particle
  4. 5. formed by atoms linking together
  5. 8. positive charged subatomic particle