double bonding with halogens

[Nare Arakelian Dis 3E]

Do the halogens like fluorine and chlorine never form double bonds in lewis structures?

[Ryan Yee 1J]

Fluorine likely does not, but since chlorine is in the n=3 group, it can form double bonds because of the technical presence of d orbitals.

[Tracy Tolentino_2E]

No because halogens only want one more electron. So by having a single bond, they fulfill the octet rule.

[John Arambulo 1I]

Chlorine can form double bonds if it is the central atom because it can utilize its 3d orbitals to have an expanded octet. Generally, when bonded to a central atom, halogens usually form single bonds.