#### Question

Element X is a metal with a valency 2, Y is 3 non- metal with a valency 3.

1) Write an equation to show how Y from an ion.

2) If Y is a diatomic gas, write an equation for the direct combination of X and Y to form a compound.

#### Solution

1) Y will form an anion by gaining 3 electrons.

The equation is given as Y + 3e^{-} → Y3^{-}

2) The equation for the direct combination of X and Y to form a compound is 3X + Y_{2} → X_{3}Y_{2}

Is there an error in this question or solution?

Solution Element X is a Metal with a Valency 2, Y is 3 Non- Metal with a Valency 3. Write an Equation to Show How Y from an Ion. If Y is a Diatomic Gas, Write an Equation for the Direct Combination of X and Y to Form a Compound. Concept: Periodic Properties - Electron Affinity.