The energy of a 2p orbital in a multi-electro | vedclass

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(B) For multi-electron atoms,the energy of an orbital depends on both the principal quantum number $(n)$ and the azimuthal quantum number $(l)$.Accord

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More than that of $2s$ orbital

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(B) For multi-electron atoms,the energy of an orbital depends on both the principal quantum number $(n)$ and the azimuthal quantum number $(l)$.According to the $(n+l)$ rule,the energy of an orbital increases as the value of $(n+l)$ increases.For $2s$ orbital: $n=2, l=0$,so $(n+l) = 2+0 = 2$.For $2p$ orbital: $n=2, l=1$,so $(n+l) = 2+1 = 3$.Since the $(n+l)$ value for $2p$ is greater than that for $2s$,the $2p$ orbital has higher energy than the $2s$ orbital.

The energy of a $2p$ orbital in a multi-electron atom is

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