The values of quantum numbers n, l and m for the fifth electron of boron is

Options

A. n = 2,l = 1, m = -1
B. n= 2, l=0 , m=-1
C. n=2 , l=2 , m=-1
D. n=1 , l = 2 , m=-1

Answer

A

Explanation

`2p_x^1 n = 2 , l = 1 , m_l = -1 ,+1 ,0`