(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

Figure $1$ shows the electron density distribution for a $2s$ orbital. Figure $2$ shows the radial wave function plot for a $2s$ orbital. Which of the following points $(A, B, C, D)$ in Figure $2$ most accurately represents the spherical nodal surface as shown in Figure $1$?

DifficultJEE MAIN 2026

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In which of the following,orbitals are correctly arranged in the increasing order of their energies?

EasyAP EAMCET 2023

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

Difficult

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Identify the pair of elements in which the ratio of the number of $s$-electrons to $p$-electrons is $2:3$.

MediumTS EAMCET 2024

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Two electrons $A$ and $B$ in an atom have the following set of quantum numbers:
$A: n=3, l=2, m_l=-2, m_s=+1/2$
$B: n=3, l=0, m_l=0, m_s=+1/2$
What is true for $A$ and $B$?

Easy

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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

Figure $1$ shows the electron density distribution for a $2s$ orbital. Figure $2$ shows the radial wave function plot for a $2s$ orbital. Which of the following points $(A, B, C, D)$ in Figure $2$ most accurately represents the spherical nodal surface as shown in Figure $1$?

In which of the following,orbitals are correctly arranged in the increasing order of their energies?

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

Identify the pair of elements in which the ratio of the number of $s$-electrons to $p$-electrons is $2:3$.

Two electrons $A$ and $B$ in an atom have the following set of quantum numbers:$A: n=3, l=2, m_l=-2, m_s=+1/2$$B: n=3, l=0, m_l=0, m_s=+1/2$What is true for $A$ and $B$?

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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?

Two electrons $A$ and $B$ in an atom have the following set of quantum numbers:
$A: n=3, l=2, m_l=-2, m_s=+1/2$
$B: n=3, l=0, m_l=0, m_s=+1/2$
What is true for $A$ and $B$?