The expected electronic configuration of $\ce{Cr}$ ($Z = 24$) is $1s^2\,2s^2\,2p^6\,3s^2\,3p^6\,3d^4\,4s^2$, but the act

Question

The expected electronic configuration of $\ce{Cr}$ ($Z = 24$) is $1s^2\,2s^2\,2p^6\,3s^2\,3p^6\,3d^4\,4s^2$, but the actual configuration is:

Accepted Answer

$1s^2\,2s^2\,2p^6\,3s^2\,3p^6\,3d^5\,4s^1$

Answer

$1s^2\,2s^2\,2p^6\,3s^2\,3p^6\,3d^3\,4s^3$

Answer

$1s^2\,2s^2\,2p^6\,3s^2\,3p^6\,3d^6$

Answer

$1s^2\,2s^2\,2p^6\,3s^2\,3p^6\,4s^2\,3d^4$

The expected electronic configuration of Cr\ce{Cr}Cr (Z=24Z = 24Z=24) is 1s2 2s2 2p6 3s2 3p6 3d4 4s21s^2\,2s^2\,2p^6\,3s^2\,3p^6\,3d^4\,4s^21s22s22p63s, but the actual configuration is: