Chemistry Crossword

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Across
  1. 3. an electrostatic bond between multiple atoms in a compound
  2. 7. an element in group 1 of the periodic table
  3. 8. a subatomic particle with far less mass than a proton
  4. 9. the force holding atoms together
Down
  1. 1. A mixture of 2 or more metals
  2. 2. Atoms of an element with the same number of protons and neutrons
  3. 4. the attractive force between multiple atoms in a compound
  4. 5. an element in group 18 of the periodic table
  5. 6. an element in group 17 of the periodic table
  6. 7. the number of protons in an atoms nucleus