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(A) The energy of an orbital in a multi-electron system depends on the effective nuclear charge $(Z_{eff})$. As the nuclear charge $(Z)$ increases,the

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$K$

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(A) The energy of an orbital in a multi-electron system depends on the effective nuclear charge $(Z_{eff})$. As the nuclear charge $(Z)$ increases,the attraction between the nucleus and the electrons increases,which stabilizes the orbital and lowers its energy. Among the given elements,the atomic numbers are: $H$ $(Z=1)$,$Li$ $(Z=3)$,$Na$ $(Z=11)$,and $K$ $(Z=19)$. Since $K$ has the highest nuclear charge $(Z=19)$,the $2s$ orbital in $K$ experiences the strongest attraction,resulting in the lowest energy.

Among the following,the energy of $2s$ orbital is lowest in

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Among the following pairs of orbitals,which orbital will experience the larger effective nuclear charge?
$(i)$ $2s$ and $3s$
$(ii)$ $4d$ and $4f$
$(iii)$ $3d$ and $3p$

Among the following pairs of orbitals,which orbital will experience the larger effective nuclear charge?
$(i)$ $2s$ and $3s$
$(ii)$ $4d$ and $4f$
$(iii)$ $3d$ and $3p$

The screening effect of inner electrons of the nucleus causes

The unpaired electrons in $Al$ and $Si$ are present in the $3p$ orbital. Which electrons will experience a higher effective nuclear charge from the nucleus?

For which of the following is $Z_{eff}$ equal to $Z$?

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Among the following,the energy of $2s$ orbital is lowest in

Similar Questions

Among the following pairs of orbitals,which orbital will experience the larger effective nuclear charge?$(i)$ $2s$ and $3s$$(ii)$ $4d$ and $4f$$(iii)$ $3d$ and $3p$

Among the following pairs of orbitals,which orbital will experience the larger effective nuclear charge?$(i)$ $2s$ and $3s$$(ii)$ $4d$ and $4f$$(iii)$ $3d$ and $3p$

The screening effect of inner electrons of the nucleus causes

The unpaired electrons in $Al$ and $Si$ are present in the $3p$ orbital. Which electrons will experience a higher effective nuclear charge from the nucleus?

For which of the following is $Z_{eff}$ equal to $Z$?

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Among the following pairs of orbitals,which orbital will experience the larger effective nuclear charge?
$(i)$ $2s$ and $3s$
$(ii)$ $4d$ and $4f$
$(iii)$ $3d$ and $3p$

Among the following pairs of orbitals,which orbital will experience the larger effective nuclear charge?
$(i)$ $2s$ and $3s$
$(ii)$ $4d$ and $4f$
$(iii)$ $3d$ and $3p$