Lone electron pairs weakening bonds

[William Chan 1D]

Dr. Lavelle talked about how fluorine, F2, has a weaker than expected bond strength because of lone electron pairs on neighboring atoms.

Why do lone electron pairs on neighboring atoms weaken the bonds?

[MingdaH 3B]

Due to electron repulsion from the lone pairs, the bond will be weaker as the repulsive force of the electrons go against the attractive force of the bond.

[Rory Simpson 2F]

The lone pair electrons of fluorine would be interacting with each other because of the small size of fluorine atoms, causing a repelling force that would weaken the overall bond. That's why fluorine has a fairly small dissociation energy because of these lone pair electron interactions between the atoms repelling them.

[Charysa Santos 4G]

The lone pairs of the electrons found on neighboring atoms weaken these bonds due to electron repulsion. The neighboring atoms in a molecule that have lone pair electrons are not bonded as tightly because the lone pair electrons of both atoms repel one another.

[Anna Heckler 2C]

Lone pairs on bonded atoms weaken the bond because of repulsion. Electrons are negatively charged - like charges repel each other, so the repulsion of these clustered electrons weakens the bond.