Question

write the electronic configuration cu(z-29) and fe (z=26)

Answer 1

Electric configutaion of Cu

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

E.C of fe

1s^2 2s^2 p^6 3s^2 p^6 4s^2 3d^6

Answer 2

The electronic configuration of Cu is-

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

The electronic configuration of Fe is-

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

• Copper is a transition element of a 3d block. It has the symbol of Cu. The atomic number of Cu or copper is 29. The electronic configuration of Cu is-
• ${1s}^{2} {2s}^{2} {2p}^{6} {3s}^{2} {3p}^{6} {4s}^{1} {3d}^{10}$
• Iron is a transition element of a 3d block. It has the symbol of Fe. The atomic number of Fe or iron is 26.
• The electronic configuration of Fe is-

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