Teaching UP PGT Mock Test Series 2024 Chemistry Classification of Elements and Periodicity in Properties Periodic Table
The set of quantum numbers (n, l, m and s) that represent valency electron of sodium is:
1
3, 2, 1, \(+\frac{1}{2}\)
2
3, 2, 0, \(+\frac{1}{2}\)
3
3, 1, 1, \(−\frac{1}{2}\)
4
3, 0, 0, \(+\frac{1}{2}\)