Criss Cross

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Across
  1. 2. A positively charged ion
  2. 3. smallest particle
  3. 7. A minute portion of matter
  4. 10. A distinctive form of matter such as a solid, liquid, gas, or plasma
  5. 11. Mass per unit volume of a material.
  6. 12. A force that holds atoms together in a compound
  7. 13. Vertical row in the periodic table
  8. 15. The action of being moved or moving
  9. 16. The number of protons and neutrons found in nucleus
Down
  1. 1. The number of protons in an atom's nucleus
  2. 4. The temperature at which a solid becomes a liquid
  3. 5. An equal amount of charge or particles
  4. 6. Group of elements with similar chemical properties
  5. 7. Horizontal row in the periodic table
  6. 8. Attraction formed between oppositely charged ions in an ionic compound
  7. 9. A phase that does not have a definite shape or volume
  8. 14. A phase that has a definite volume but takes the shape of its container
  9. 15. Amount of matter in an object