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Which of the following quantum number combinations is not allowed in a ground-state atom? (2, 1, 1, -½) (8, 7, -7, +½) (5, 5, -5, +½) (1, 0, 0, +½)
Which of the following quantum number combinations is not allowed in a ground-state atom?
(2, 1, 1, -½)
(8, 7, -7, +½)
(5, 5, -5, +½)
(1, 0, 0, +½)