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Magnesium reacts with an element (x) to ...

Magnesium reacts with an element (x) to form an ionic compound. If the ground state electronic configuration of (X) is `1s^2 2s^2 2p^3`, the simplest formula for this compound is

A

`Mg_(2)X`

B

`MgX_(2)`

C

`Mg_(2)X_(3)`

D

`Mg_(3)X_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
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)`.
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