Question

If the valence shell electronic structure for an element is $n{s}^{2}n{p}^5$, this element will belong to the group of

• A. Alkali metals
• B. Inert metals
• C. Noble gases
• D. Halogens

Answer 1

The correct option is D

Halogens

$n{s}^{2}n{p}^5$ configuration implies that the element has 7 electrons in its valence shell.

So, this element definitely belongs to the Group-17 or the Halogens group.