Matter

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Across
  1. 2. a state of matter that has no fixed shape or volume
  2. 4. a group of atoms bonded together
  3. 7. a thing that is composed of 2 or more separate elements
  4. 8. a state of matter with similar properties of a gas
  5. 12. the positively charged dense center of an atom
  6. 14. a table showing all 92 elements
  7. 15. a stable particle with positive charge
Down
  1. 1. anything that takes up space and has mass
  2. 3. the amount of protons in the atom's nucleus
  3. 5. a pure substance
  4. 6. the smallest component of an element
  5. 9. a state of matter that has a fixed volume but no fixed shape
  6. 10. a state of matter that has a fixed volume and fixed shape
  7. 11. a subatomic particle with zero charge
  8. 13. an elementary particle with negative charge