Question

Which among the following elements belong to the group 17?

• A. $P$
• B. $O$
• C. $N$
• D. $I$

Answer 1

The correct option is D $I$

Group 17 is the last but one group in which there should be one unpaired electron with oxidation state -1. Hence these should be halogens like fluorine, chlorine, bromine and so on. Here, Iodine ($I$) is the halogen amongst the given elements.