The four quantum numbers of the valence electron of potassium are

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4, 1, 0 and 12

4, 0, 1 and 12

4, 0, 0 and + 12

4, 1, 1 and 12

answer is C.

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Detailed Solution

Atomic number of potassium is 19 and hence electronic configuration will be 1s2, 2s2, 2p6, 3s2, 3p6, 4s1Hence for 4s1 electron value of Quantum number arePrincipal quantum number n = 4Azimuthal quantum number l = 0Magnetic quantum number m = 0Spin quantum number s = +1/2

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