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

Question

Which of the following is not permissible arrangement of electrons in an atom. (A) n = 3, l = 2, m =- 2, s = - 1/2 (B) n = 4, l =0, m = 0, s = - 1/2 (C) n = 5, l = 3 , m = 0 , s = + 1/2 (D) n = 3, l = 2 , m = -3, s = - 1/2

Tardigrade Admin · Accepted Answer

n=3, 1=2, m=-3, s=-(1/2) For a given value of n, 1 can be 0 to (n â 1) Hence, for n = 3, value of 1 can be 2 for a given value of 1, m can be from â 1 to + 1. Thus, m can be â 2 to + 2, but given m = 3, which is not possible.

Q. Which of the following is not permissible arrangement of electrons in an atom.

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

n = 4, l =0, m = 0, s = - 1/2

n = 5, l = 3 , m = 0 , s = + 1/2

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

$n = 3$ , $1 = 2$ , $m = - 3$ , $s = - \frac{1}{2}$
For a given value of $n$ , $1$ can be $0$ to $(n - 1)$
Hence, for $n = 3$ , value of $1$ can be $2$ for a given value of $1$ , $m$ can be from $- 1$ to $+ 1$ .
Thus, $m$ can be $- 2$ to $+ 2$ , but given $m = 3$ , which is not possible.

Q. Which of the following is not permissible arrangement of electrons in an atom.

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

n = 4, l =0, m = 0, s = - 1/2

n = 5, l = 3 , m = 0 , s = + 1/2

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

n=3, 1=2, m=−3, s=−21​ For a given value of n, 1 can be 0 to (n−1) Hence, for n=3, value of 1 can be 2 for a given value of 1, m can be from −1 to +1. Thus, m can be −2 to +2, but given m=3, which is not possible.

$n = 3$ , $1 = 2$ , $m = - 3$ , $s = - \frac{1}{2}$
For a given value of $n$ , $1$ can be $0$ to $(n - 1)$
Hence, for $n = 3$ , value of $1$ can be $2$ for a given value of $1$ , $m$ can be from $- 1$ to $+ 1$ .
Thus, $m$ can be $- 2$ to $+ 2$ , but given $m = 3$ , which is not possible.