Which one of the following represents an impossible set of quantum numbers for a

Question

Which one of the following represents an impossible set of quantum numbers for an electron in an atom? (arranged as n, I, m, and m) A) 3, 2, -2, 1/2 B) 3, 2, 2, -1/2 C) 3, 2, 0, +1/2 D) 3, 1, -1, -1/2 E) 3, 2, 0, 0 In general, as you go across a period in the periodic table from left to right: (1) the atomic radius _____; (2) the electron affinity becomes _____ negative; and (3) the first ionization energy _____. A) decreases, increasingly, increases B) decreases, increasingly, decreases C) increases, increasingly, decreases D) increases, increasingly, increases E) decreases, decreasingly, increases Which isoelectronic series is correctly arranged in order of increasing radius? A) K^+

Explanation / Answer

39) Out of the given sets of quantum number, the following set is not possible.

(E) 3, 2 , 0, 0

no electron has spin quantum number(ms) equals to zero, spin quantum number either is equal to +1/2 or -1/2

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