Question:
The atomic number of magnesium is 12. What is its valency?
The atomic number of magnesium is 12. What is its valency?
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Valency is determined by the number of electrons lost, gained, or shared to achieve stability.
Updated On: Oct 27, 2025
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The Correct Option is B
Solution and Explanation
Magnesium has an atomic number of 12, meaning its electronic configuration is 2,8,2. It donates two electrons to achieve a stable noble gas configuration, making its valency 2.
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