1.

In an universe other than earth all the quantum numbers have same value as on earth except .l. and .s.. Azimuthal quantum number can have values from 0 to (n + 1) in integral step and s (spinquantum no.) has values of (-1/2 , 0 & + 1/2) . If all rules like Aaufbau rule, Hund.s rule and Paulis exclusion rule follow in other universe also. Atomic number of element in 4^(th) period and 5^(th) column will be

Answer»

89
71
73
75

Solution :71


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