Which of the following is not a valid set of four quantum numbers? (n,l,m_l,m_s) A)2, 0, 0, +1/2 B)2, 1, 0, -1/2 C)3, 1, -1, -1/2 D)1, 0, 0, +1/2 E)1, 1, 0, +1/2

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The quantum numbers are defined as follows: $n$ (principal quantum number), $l$ (azimuthal or angular momentum quantum number), $m_l$ (magnetic quantum number), and $m_s$ (spin quantum number). For a given value of $n$, $l$ can range from 0 to $n-1$. In option E, with $n=1$, $l$ cannot be 1 because $l$ must be in the range 0 to $n-1$, which means $l$ can only be 0 when $n=1$.

Which of the Following Is Not a Valid Set of Four