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Structure of Atom
Question
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From the following sets of quantum numbers, state which are possible. Explain why others are not permitted.
(i) n = 1,   l = 0,    m = +1,    s = +1/2

(ii) n = 2,   l = 1,   m =-1,      s = -1/2

(iii) n = 2,  l =2,    m = 0,     s = -1/2

(iv) n =2,  l =1,    m = 0,     s =+1/2

Answer

(i) The given sets of quantum numbers are not possible ; when l = 0, m cannot be + 1.
(ii) The given sets of quantum numbers are Possible.
(iii) The given sets of quantum numbers are not possible because when n = 2, l cannot be 2.
(iv) The given sets of quantum numbers are Possible.

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