The electronic configuration of an element is `1s^(2),2s^(2),2p^(6),3s^(2)3p^(3)`. The atomic number and the group number of the element X which is just below the above element in the periodic table respectively, are

Options

A. 23 and 5
B. 23 and 15
C. 33 and 15
D. 33 and 5

Answer

C

Explanation

Atomic number of the given element `=15` , group no.`=10+5` (valence electrons) `=15`, period `=4^(th)` Therefore atomic number of the element below the above element `=15+18=33`