Which set of quantum numbers, n,L,M_l,Could correspond to one of the highest energy electrons in Zr? A) 4, 2, -2 B) 4, 2, +3 C) 3, 2, -2 D) 4, 3, -2

Question

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Zirconium (Zr) has an atomic number of 40, and its electron configuration ends in 4d². The highest energy electrons are in the 4d subshell, which corresponds to n=4, l=2. The magnetic quantum number (Ml) can range from -l to +l, so -2 is a valid value for Ml in this case.

Which Set of Quantum Numbers, N,L,Ml,Could Correspond to One of the Highest

Which Set of Quantum Numbers, N,L,M_l,Could Correspond to One of the Highest