Magnesium reacts with an element (X) to form an ionic compound.
If the ground state electronic configuration of (X) is 1s22s22p3,
the simplest formula for this compound is: 

1. Mg2X3

2. MgX2

3. Mg2X

4. Mg3X2

Subtopic:  Nature of Compound |
 74%
From NCERT
NEET - 2018
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