Q2 / 160 · TS EAMCET 2023 (13 May Shift 1) · Chemistry

Identify the impossible quantum number set for the electron from the following

  • A
    $\mathrm{n}=2, l=0, \mathrm{~m}=0, \mathrm{~s}=-\frac{1}{2}$
  • B
    $\mathrm{n}=2, l=1, \mathrm{~m}=0, \mathrm{~s}=\frac{1}{2}$
  • Correct answer
    C
    $\mathrm{n}=3, l=3, \mathrm{~m}=1, \mathrm{~s}=\frac{1}{2}$
  • D
    $\mathrm{n}=4, l=2, \mathrm{~m}=1, \mathrm{~s}=\frac{1}{2}$

Solution

For a given value of ' $n$ ', there are ' $n$ ' values of ' $\ell$ ' that range from 0 to $(\mathrm{n}-1)$.

Hence, the correct answer is option: 'C'.

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