Chemistry review

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Across
  1. 5. The shape stays the same and does not change
  2. 9. Positively charged particle in the nucleus of a atom
  3. 10. Negatively charged particle in the outside of the nucleus of a atom
  4. 11. The substance has a indefinite shape and volume
Down
  1. 1. The shape is able to change shapes, the shape does not stay the same
  2. 2. Is required to have volume and mass
  3. 3. The amount of protons and electrons in a element
  4. 4. Neutral charged particle in the nucleus of a atom
  5. 6. A atom that has the same number of protons and electrons but a different number of neutrons
  6. 7. The average weight of all the protons and neutrons
  7. 8. A substance that is made completely by one type of atom