| Bond | # of electrons | Bond Order | Bond Strength | Bond Length |
| Single | 2 | 1 | Weakest | Longest |
| Double | 4 | 2 | ||
| Triple | 6 | 3 | Strongest | Shortest |
Important points to remember about bond enthalpies:
- Bond enthalpy is the energy required to break a bond
- The stronger the bond, the higher the bond enthalpy
- Bond enthalpy is always positive (endothermic)
- Bond formation, EXOthermic, energy out
- Bond breaking, ENDOthermic, energy in
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