What is the electronic configuration of Chrom | vedclass

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(D) The atomic number of Chromium $(Cr)$ is $24$. According to the Aufbau principle,the expected configuration is $[Ar] 3d^4 4s^2$. However,due to the

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$2, 8, 13, 1$

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(D) The atomic number of Chromium $(Cr)$ is $24$. According to the Aufbau principle,the expected configuration is $[Ar] 3d^4 4s^2$. However,due to the extra stability of half-filled $d$-orbitals,one electron from the $4s$ orbital shifts to the $3d$ orbital. Thus,the actual electronic configuration is $[Ar] 3d^5 4s^1$. In terms of shells,this corresponds to $2, 8, 13, 1$ $(K=2, L=8, M=13, N=1)$.

What is the electronic configuration of Chromium $(Z=24)$?

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