chemistry

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Across
  1. 1. a positive unit or subatomic particle that has a positive charge
  2. 4. a subatomic particle with a net charge that is negative
  3. 5. Group 7 on the Periodic Table and are all non-metals
  4. 7. earth metals the metals of Group 2 on the periodic table
  5. 8. metal elements that have incomplete d sub-shells, but also may be referred to as the d-block elements
Down
  1. 2. a neutral unit or subatomic particle that has no net charge
  2. 3. a substance possessing both the properties of metals and non-metals
  3. 6. metals the metals of Group 1 on the periodic table
  4. 9. a molecule that has gained or lost one or more electrons
  5. 10. gases group 18 elements, those whose outer electron shell is filled