Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Magnesium reacts with an element ( X ) to form an ionic compound. If the ground state electronic configuration of ( X ) is 
the simplest formula for this compound is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Electronic configuration of 
is 
So, valency of 
will be 3.
Magnesium ion 
Formula: 
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