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The values of four quantum number of valence electron of an element are `n = 4, l = 0, m = 0 and s=+(1)/(2)` . The element is:

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The values of four quantum number of valence electron of an element are `n = 4, l = 0, m = 0 and s=+(1)/(2)` . The element is:
A. K
B. Ti
C. Na
D. Sc
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Correct Answer - A
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