Chemical Bonds

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Across
  1. 4. When groups of atoms are held together with these chemical bonds we call that substance a ___.
  2. 6. A(n) ____ reaction happens when chemical bonds give off heat.
  3. 8. We identify that substance using a chemical ______.
  4. 9. a particle that contains protons, neutrons, and electrons.
  5. 10. Atoms can be linked to one another through chemical _____.
Down
  1. 1. An electron in outer shell associated with an atom.
  2. 2. A chemical _____ occurs when chemical bonds are broken.
  3. 3. When substances react and chemical bonds are formed or broken, then a chemical _____ has occurred.
  4. 5. Has 6 protons
  5. 7. Has 1 proton