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Which of the following sets of quantum number is not possible:
(1) n=3, l=+2, m=0,and s = +1/2
(2) n=3, l=0, m=0,and s = -1/2
(3) n=3, l=0, m=-1,and s = +1/2
(4) n=3, l=1, m=0,and s = -1/2
Ans: n=3, l=0, m=-1,and s = +1/2
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