Mole Day!!

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Across
  1. 2. forms of an element with different # of neutrons
  2. 4. have properties of metals and nonmetals
  3. 6. brittle and insulators
  4. 8. a soft metal
  5. 10. the date that Mole day takes place
  6. 13. an element with the symbol C
  7. 15. a liquid
Down
  1. 1. solid malleable and luster
  2. 3. negatively charged subatomic particle
  3. 5. the smallest unit of matter
  4. 7. the 10th month of the year
  5. 9. neutrally charged subatomic particle
  6. 11. the center of an atom
  7. 12. also a liquid
  8. 14. positively charged subatomic particle