Its science Yo

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Across
  1. 2. smallest form of a chemical element
  2. 4. the amount of mass per volume
  3. 5. subatomic particle with a negative charge
  4. 9. mixture made up of multiple substances
Down
  1. 1. state of matter with a definite shape and volume
  2. 2. number number of protons in an element
  3. 3. state of matter with no definite shape or volume
  4. 6. state of matter that takes the shape of its container
  5. 7. the center of an atom, made of protons and neutrons
  6. 8. the amount of matter in an object