Chemistry crossword

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Across
  1. 3. The shape and volume varies, particles moving fast.
  2. 5. Shape forms to container, volume stays same. Particles move medium speed
  3. 6. Positively charged particles of an atom
  4. 8. Smallest part of an element that still has its characteristics
  5. 9. Negatively charged particles that orbits the nucleus
  6. 11. shape stays same unless physically changed, particles move slowly. volume stays the same
  7. 12. Amount of matter in an object
  8. 13. anything that has mass and volume
  9. 14. The total number of neutrons and protons
Down
  1. 1. Rounded minus the atomic number to get the number of neutrons in an atom
  2. 2. Charge less particle found in the nucleus of an atom
  3. 4. The number of protons and electrons in the nucleus of an atom
  4. 7. amount of space an object takes up
  5. 10. Purest state, a group of one kind of atom.