(B) For an electron in an atom,the quantum numbers must satisfy the following rules:$1$. $n$ is a positive integer $(1, 2, 3, \dots)$.$2$. $l$ can hav

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$n = 3, l = 2, m = -3, s = -1/2$

(B) For an electron in an atom,the quantum numbers must satisfy the following rules:$1$. $n$ is a positive integer $(1, 2, 3, \dots)$.$2$. $l$ can have values from $0$ to $(n - 1)$.$3$. $m$ can have values from $-l$ to $+l$ (including $0$).$4$. $s$ can be $+1/2$ or $-1/2$.In option $B$,$n = 3$ and $l = 2$. The allowed values for $m$ are $-2, -1, 0, +1, +2$. Since $m = -3$ is outside this range,this arrangement is not permissible.

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

Medium

Which of the following is not a permissible arrangement of electrons in an atom?

AIPMT 2009 All AIPMT

A
$n = 5, l = 3, m = 0, s = +1/2$
B
$n = 3, l = 2, m = -3, s = -1/2$
C
$n = 3, l = 2, m = -2, s = -1/2$
D
$n = 4, l = 0, m = 0, s = -1/2$

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Structure of Atom

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Quantum number, Electronic configuration and Shape of orbitals

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Which of the following is not a permissible arrangement of electrons in an atom?

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