For H^{-} atom,the energy required for the re | vedclass

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(C) For hydrogen-like species (single electron systems),the energy of an electron depends only on the principal quantum number $n$.The energy of an or

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$E_1 = E_2 = E_3$

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(C) For hydrogen-like species (single electron systems),the energy of an electron depends only on the principal quantum number $n$.The energy of an orbital is given by the formula:$E_n = -13.6 	imes \frac{Z^2}{n^2} \ eV$In the given question,the sub-shells $3s$,$3p$,and $3d$ all belong to the same principal shell $(n=3)$.Since they have the same value of $n$,they are degenerate,meaning they have the same energy.Therefore,the energy required to remove an electron from these sub-shells is equal.$E_1 = E_2 = E_3$Thus,option $C$ is correct.

For $H^{-}$ atom,the energy required for the removal of an electron from various sub-shells is given as under:
The order of the energies would be:

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For $H^{-}$ atom,the energy required for the removal of an electron from various sub-shells is given as under:The order of the energies would be: