The valence shell electronic configuration of an element is 4s^2, 4p^1. To which group does the element belong?

I-B

II-B

I-A

III-A

the given valence shell electronic configuration is 4s2 4p1.

This means that the atom has a total of 3 valence electrons, with 2 electrons in the 4s subshell and 1 electrons in the 4p subshell

2 + 1 = 3 (III-A)

would be in GroupIII-A and 3 period.