Chemistry

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Across
  1. 1. constant movement spread out, bounce
  2. 7. energy levels
  3. 8. particle size is 0.01-1 nm
  4. 9. subtract the atomic # and the atomic mass
  5. 12. no longer have a 0 charge
  6. 13. very little movement, tightly paced together
  7. 14. matter made of more than one type of atom
  8. 15. represent only the valence electrons of an atom
Down
  1. 2. particle size larger than 1000 nm
  2. 3. particle size 1-1000 nm
  3. 4. pawwwwwwsitive
  4. 5. based on the atomic number
  5. 6. negative
  6. 10. matter made of only one type of atom
  7. 11. combination of 2 or more substances that are not chemically combined