An element has electronic configuration `1s^(2),2p^(6),3s^(2),3p^(3)`. Predict their group and block.

Options

A. period=`3^(rd)`,block=p,group=15
B. period=`5^(th)`,block=`s`,group=`1`
C. period=`3^(rd)`,block=`p`,group=`12`
D. period=`4^(th)`,block=`d`,group=`12`

Answer

A

Explanation

By obeservinng principal quantum number (n) , Orbital (s,p,d,f) and equating no of `e^(-')s` , we are able to find the period , block and group of element in period table .