states of matter

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Across
  1. 1. is a lasting force that holds atoms
  2. 3. when two or more atoms get together
  3. 7. the fundamental building block
  4. 8. are on the right side of the element table
  5. 11. the number of protons found in the nucleus
  6. 14. an atom that Carry's a net electric charge
  7. 16. a symbolic representation
  8. 18. constant numbers of atoms
Down
  1. 2. the smallest unit of a chemical compound
  2. 4. the electrons located outside the shell
  3. 5. a molecule that has only one charge
  4. 6. diagram a visal represented of a atom
  5. 9. the strong attraction
  6. 10. a strong electrostatic attraction
  7. 12. chemical propoties
  8. 13. a class of chemical elements
  9. 15. a pure substance
  10. 17. the membrane