Question

 An element X combines with two atoms of oxygen to form a neutral compound . State the valency of an element `X' :-​

Answer 1

Answer:

We know the valency of Oxygen is 2.

Therefore for the chemical formula to be X2O3, the valency of X must be 3.

Therefore the formula of its chloride will be XCl3.

Explanation:

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Answer 2

Answer:

The neutral oxide of the element X , is formed by the combination of and . Thus the valency of the element is X as it has lost three electrons to acquire stable noble gas configuration. Similarly oxygen has gained two electrons to attain stable noble gas configuration and thus has a valency of two.

Explanation:

Answer by @Missmiracle12 ❤️