Maximum covalency of an element of atomic number 7 is

Options

A. 4
B. 2
C. 5
D. 3

Answer

A

Explanation

The electronic configuration, of an element of aloinic number 7, is `1s^2" "2s^2" "2p_x^(1), 2p_y^(1), 2p_z^(1)`. Thus, the valency shell is second principal shell which has only four orbitals. Therefore, the element can form maximum of four covalent bonds. Thus, its covalency is 4.