Which of the following sets of quantum number are correct a) $n = 1,\,l = 1,\,m = + 2$ b) $n = 2,\,l = 1,\,m = + 1$ c) $n = 3,\,l = 2,\,m = - 2$ d) $n = 3,\,l = 4,\,m = - 2$

JEE CHEMISTRY MCQ: STRUCTURE OF ATOM

1 Medium

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Understanding +4 | -1

Which of the following sets of quantum number are correct

a)

n = 1,\,l = 1,\,m = + 2

n = 2,\,l = 1,\,m = + 1

n = 3,\,l = 2,\,m = - 2

n = 3,\,l = 4,\,m = - 2

View answer and explanation

Correct option: B

b,c

Option B (b,c) is correct because the allowed values for the quantum numbers are:

0 \le l \le n-1

and

-l \le m \le +l

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n^{\text {th }}

\mathrm{A}

\times 10^{12}

\frac{1}{{ }^{\prime} \mathrm{B}^{\prime}}

\ell = 1,\,\,m = 0

1.25 \times {10^{ - 13}} \times {A^{1/3}}\mathrm{cm}.