#### Question

An element X is in group 2 of the periodic table What will be the formula of its chloride?

#### Solution

An element X in group 2 has a valency of 2. We know that chlorine has 7 valence electrons. Therefore, the valency of chlorine Cl is 1, that is, (8 - 7).

Now, when one atom of X combines with two atoms of Cl, an ionic compound of the formula XCl_{2} is formed.

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Solution An Element X is in Group 2 of the Periodic Table What Will Be the Formula of Its Chloride? Concept: Periodic Classification of Elements Questions.