(C) According to the $(n+l)$ rule,the energy of an orbital increases as the value of $(n+l)$ increases.For option $A$: $n+l = 4+0 = 4$.For option $B$:

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$n=3, l=2, m=-2, s=+\frac{1}{2}$

(C) According to the $(n+l)$ rule,the energy of an orbital increases as the value of $(n+l)$ increases.For option $A$: $n+l = 4+0 = 4$.For option $B$: $n+l = 3+1 = 4$.For option $C$: $n+l = 3+2 = 5$.For option $D$: $n+l = 3+0 = 3$.Since the value of $(n+l)$ is maximum for option $C$,it represents the highest energy level.

Class 11 Chemistry Structure of Atom Quantum number, Electronic configuration and Shape of orbitals

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Which one of the following sets of quantum numbers represents the highest energy level in an atom?

KCET 2011 All KCET

A
$n=4, l=0, m=0, s=+\frac{1}{2}$
B
$n=3, l=1, m=1, s=+\frac{1}{2}$
C
$n=3, l=2, m=-2, s=+\frac{1}{2}$
D
$n=3, l=0, m=0, s=+\frac{1}{2}$

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Structure of Atom

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Quantum number, Electronic configuration and Shape of orbitals

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The atomic numbers of elements $X, Y$ and $Z$ are $19, 21$ and $25$ respectively. The number of electrons present in the $M$-shell of these elements follow the order:

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Which of the following sets of quantum numbers is not possible?

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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:

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For hydrogen-like atoms,the average distance of an electron from the nucleus for the orbitals belonging to the $4^{th}$ orbit is minimum for:

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Which orbital is dumb-bell shaped?

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Which one of the following sets of quantum numbers represents the highest energy level in an atom?

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The atomic numbers of elements $X, Y$ and $Z$ are $19, 21$ and $25$ respectively. The number of electrons present in the $M$-shell of these elements follow the order:

Which of the following sets of quantum numbers is not possible?

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:

For hydrogen-like atoms,the average distance of an electron from the nucleus for the orbitals belonging to the $4^{th}$ orbit is minimum for:

Which orbital is dumb-bell shaped?

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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: