Chemistry

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Across
  1. 3. table salt (NaCl) is an example of this type of bond
  2. 7. particle in the nucleus that holds the protons together
  3. 9. particle that determines the element
  4. 10. atomic element with an unusual number of neutrons
Down
  1. 1. water (H2O) is an example of this type of bond
  2. 2. number of protons in an atom
  3. 4. atomic with an unusual number of electrons resulting in the atom having a charge
  4. 5. number of protons plus the number of neutrons
  5. 6. smallest part of an element
  6. 8. particle that orbits the nucleus
  7. 11. rule that says atoms tend to want eight valence electrons