Matter

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Across
  1. 2. a compound that forms through attraction, not sharing
  2. 6. negative charged particle of an atom
  3. 8. measures the amount of matter in an object
  4. 9. basic, pure types of matter, most are metals
  5. 11. anything with mass and volume, made by different elements
  6. 13. positive charged particle of an atom
Down
  1. 1. measures the amount of space that an object takes up
  2. 3. measures the force of gravity on an object
  3. 4. measures how much matter is contained per volume of an object
  4. 5. when two or more atoms combine; smallest part of something
  5. 7. forms when two or more different elements combine
  6. 10. particle of an atom without a charge and contained in nucleus
  7. 12. smallest piece of matter; building blocks of matter