Chemical Bonds

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Across
  1. 1. Protons, Electrons, Neutrons
  2. 6. Substance Equation
  3. 9. an atom on the periodic table
  4. 11. first element on table
Down
  1. 2. group of atoms
  2. 3. outer shell
  3. 4. creates a new substance
  4. 5. sharing electrons
  5. 7. release of heat
  6. 8. link between atoms
  7. 10. best science teacher