Question

What is the electron configuration of the element in group 13 and period 3 on the periodic table? *

Answer 1

Answer:

The 3rd option is correct

Explanation:

The element in group 13 and period 3 is aluminium which has the electron configuration

$1{s}^{2} 2 {s}^{2} 2 {p}^{6} 3 {s}^{2} 3 {p}^{1}$

or [Ne] 3s^2 3p^1