Fluorine cap f and bromine Br are in the same group on the periodic table. How do atoms of these elements compare when they form bonds?

Fluorine and bromine are both halogens in Group 17, so each has seven electrons in its outer shell. Each atom can gain one electron to fill that shell and reach a more stable arrangement. Therefore, both atoms become stable by gaining one electron; choice D states this.

AI-written and checked against the verified answer.