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Structure of Atom question

2009 · Q111
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Structure of Atom question

2009 · Q111

NEETChemistryStructure of AtomMCQ+4 / −1
Which of the following is not permissible arrangement of electrons in an atom ?
  1. A
    n = 5, lll = 3, m = 0, s = +1/2
  2. B
    n = 3, lll = 2, m = −-− 3, s = −-−1/2
  3. C
    n = 3, lll = 2, m = −-− 2, s = −-−1/2
  4. D
    n = 4, lll = 0, m = 0, s = −-−1/2
View written solutionFree

Correct answer: B

In an atom for any value of n, the values of l = 0 to (n-1)

For a given value of l, the values of ml = -lll to 0 to +lll

and the value of s = +1/2 or -1/2

In option(b), l = 2 and ml = -3

This is not possible. as for l = 2 min value of ml = -2

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