Question

to which period and group the element with outer e. n s² np³ belongs to (n=3)​

Answer 1

Explanation:

for n = 3 { principal quantum number = 3} means elements belongs to 3rd period. also outer most valance electrons in p - orbital , it belongs to P - block. the ground number = 10 + valance shell electrons = 10 + 6 = 16 . hence, the element belongs to 16th group.

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