atoms unit

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Across
  1. 3. Man's best friend
  2. 4. a subatomic particle with a negative charge
  3. 7. Likes to chase mice
  4. 8. Has a trunk
  5. 10. two or more atoms combined to form new substance
  6. 11. basic building block of all matter
  7. 12. Flying mammal
  8. 13. Large marsupial
Down
  1. 1. purest form of an atom
  2. 2. two or more atoms bonded
  3. 4. structure multiple molecules bonded multipole times in a repeating pattern
  4. 5. a subatomic particle with a neutral charge
  5. 6. a subatomic particle with a positive charge
  6. 9. substances the same consisitant atom through out
  7. 10. anything with mass and volume