# What is the outer electron configuration for the group 15 element in the fourth period?

Nov 15, 2016

$\left[A r\right] 3 {d}^{10} 4 {s}^{2} 4 {p}^{3}$

#### Explanation:

Elements of group 15 from top to bottom are:-

• Nitrogen
• Phosphorous
• Arsenic
• Antimony
• Bismuth

Since Nitrogen belongs to 2nd period, 4th period element from 15th group is Arsenic with outer electronic configuration as $\left[A r\right] 3 {d}^{10} 4 {s}^{2} 4 {p}^{3}$