Magnesium reacts with an element (X) is forms a ionic compound .If the ground state electron configuration of (X) is `1s^(2) 2s^(2) 2p^(2)` , the simple formula for the compound is

Options

A. `Mg_(2)X`
B. `MgX_(2)`
C. `Mg_(2)X_(3)`
D. `Mg_(3)X_(2)`

Answer

D

Explanation

Element (X) electronic configuration
`1sp^(2)2s^(2)2p^(3)`
So , valency of X will be 3.
Velency of Mg is 2.
Formula of compound formed by Mg and X will be `Mg_(3)X_(2)`.