(B) The energy of an electron in an atom is determined by the $(n+l)$ rule.For electron $X$: $n=3, l=2$. Therefore,$(n+l) = 3+2 = 5$.For electron $Y$:

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$X$ has greater energy than $Y$

(B) The energy of an electron in an atom is determined by the $(n+l)$ rule.For electron $X$: $n=3, l=2$. Therefore,$(n+l) = 3+2 = 5$.For electron $Y$: $n=3, l=0$. Therefore,$(n+l) = 3+0 = 3$.Since the $(n+l)$ value for $X$ $(5)$ is greater than the $(n+l)$ value for $Y$ $(3)$,the energy of $X$ is greater than the energy of $Y$.

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

Medium

The two electrons $X$ and $Y$ have the following sets of quantum numbers:
$X: n=3, l=2, m=-2, s=+1/2$ $Y: n=3, l=0, m=0, s=+1/2$

Which of the following is the correct statement?

A
$X$ and $Y$ have the same energy
B
$X$ has greater energy than $Y$
C
$X$ has less energy than $Y$
D
$X$ and $Y$ represent the same electron

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Class 11

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Structure of Atom

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Quantum number, Electronic configuration and Shape of orbitals

What is a shell in the context of atomic structure?

Easy

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The quantum number which explains the line spectra observed as doublets in the case of hydrogen and alkali metals, and doublets and triplets in the case of alkaline earth metals is:

MediumAP EAMCET 2012

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Which of the following electronic configurations has the maximum total spin multiplicity?

Easy

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Statement $1$: The energy of an electron is determined by the principal quantum number.
Statement $2$: The principal quantum number $(n)$ indicates the distance of the electron from the nucleus.

Medium

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For an electron with quantum numbers $s = +1/2$ and $m_l = -1$,which of the following orbitals is not possible?

Medium

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The two electrons $X$ and $Y$ have the following sets of quantum numbers:$X: n=3, l=2, m=-2, s=+1/2$$Y: n=3, l=0, m=0, s=+1/2$Which of the following is the correct statement?

Similar Questions

What is a shell in the context of atomic structure?

The quantum number which explains the line spectra observed as doublets in the case of hydrogen and alkali metals, and doublets and triplets in the case of alkaline earth metals is:

Which of the following electronic configurations has the maximum total spin multiplicity?

Statement $1$: The energy of an electron is determined by the principal quantum number.Statement $2$: The principal quantum number $(n)$ indicates the distance of the electron from the nucleus.

For an electron with quantum numbers $s = +1/2$ and $m_l = -1$,which of the following orbitals is not possible?

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The two electrons $X$ and $Y$ have the following sets of quantum numbers:
$X: n=3, l=2, m=-2, s=+1/2$ $Y: n=3, l=0, m=0, s=+1/2$

Which of the following is the correct statement?

Statement $1$: The energy of an electron is determined by the principal quantum number.
Statement $2$: The principal quantum number $(n)$ indicates the distance of the electron from the nucleus.