Question

Draw the electronic configuration of Cu,(Z=29), Cr(Z=24), Fe2+ (Z=26)​

Answer 1

Explanation:

Cu (Z=29)

$1 {s}^{2} 2 {s}^{2} 2 {p}^{6} 3 {s}^{2} 3 {p}^{6} 4 {s}^{1} 3 {d}^{10}$

Cr (Z=24)

$1 {s}^{2} 2 {s}^{2} 2 {p}^{6} 3 {s}^{2} 3 {p}^{6} 4 {s}^{1} 3 {d}^{5}$

${fe}^{2 + }$

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

Hope it helps