The electronic configuration of $\ce{Sc}$ ($Z = 21$) is:

Question

Accepted Answer

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

Answer

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

Answer

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

Answer

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

The electronic configuration of Sc\ce{Sc}Sc (Z=21Z = 21Z=21) is: