Bond Lengths

[Ariana Morales]

How do we know if bonds lengths are the same or different? How can we distinguish between the both?

[Esther Ahn 4I]

You can know bond lengths through dissociation energies. The strength of a bond is measured by its dissociation energy which is the energy required to break the bond. Stronger bonds are shorter bonds and weaker bonds are longer bonds. This is because larger atoms have larger bond lengths (more distance) and thus a weaker bond.

[Jessica Helfond 2F]

Additionally, as a general rule, triple bonds are going to be the shortest because they are the strongest. Double bonds are the next shortest and strongest, and single bonds are going to be the longest and therefore the weakest.

[Ashita Tanwar 3H]

Also keep in mind that in molecules, double and triple bonds are decentralized so all the bonds in the molecule should be the same length!

[yuetao4k]

In nature, the bond lengths are going to be the same for double and triple and single bonds in a molecule.