Question

Phosphorous (P) and chlorine (Cl) bond covalently to form the important industrial compound phosphorous trichloride. The diagrams below show the electron structures of phosphorous and chlorine. Which diagram shows how the covalent bonds most likely form in a phosphorous trichloride molecule? Image for option 1 Image for option 2 Image for option 3 Image for option 4

Answer 1

In the image you see below, 2 dots (electrons) of each chlorine atom are not appearing because those are the ones that are being shared with the phosphorous atom in the covalent bond.

So in your case, you'll have to choose any image similar to that one or the second one that shows a structure of the molecule.

Hope it helped,

BioTeacher101

Answer 2

The answer is going to be the first image (A)

Hope this helps :)