Chemistry

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Across
  1. 3. The name for protons + neutrons
  2. 7. Where atoms share electrons
  3. 8. the name given to an atom with a full outershell
Down
  1. 1. what we breath out
  2. 2. When atoms give electrons to gain a full outershell
  3. 4. saturated and ...... oils
  4. 5. what we breath in
  5. 6. the middle of the atom