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. 33and 15
D. 33 and 5

Explanation

Atomic number of the given element = 15
Group number = 10 + 5 (valence electrons) = 15
Period = 3
Atomic number of the element just below = 33