Question

How do you draw the Lewis Structure of `CH_2I_2`?

Answer 1

With ease, as it is the same structure as methane.

Explanation:

The number of valence electrons are `4(C)+2(H)+14(I)` `=` `20 " valence electrons"`. There are 4 bonding electron pairs around carbon so tetrahedral geometry is enforced by `"VSEPR"`. Each iodine atom bears 3 lone pairs, and thus 12 bonding electrons + 8 non bonding electrons satisfies the electron count.