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A Metal X is in the First Group of the Periodic Table. What Will Be the Formula of Its Oxide? - Science

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ConceptPeriodic Classification of Elements Questions

Question

A metal X is in the first group of the periodic table. What will be the formula of its oxide?

Solution

The elements in the first group of the periodic table have a valency of 1. As the metal X is in the first group, its valency is 1. We know that the valency of oxygen is 2 because it needs two electrons to complete its outer shell of 8. From this, we can conclude that two atoms of metal X will combine with one atom of oxygen to form an oxide X2O. Therefore, the formula of the oxide of metal X is X2O.

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APPEARS IN

 Lakhmir Singh Solution for Chemistry Class 10 (2018 to Current)
Chapter 5: Periodic Classification Of Elements
Q: 71 | Page no. 307
Solution A Metal X is in the First Group of the Periodic Table. What Will Be the Formula of Its Oxide? Concept: Periodic Classification of Elements Questions.
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