Question

23. An atom X has seven valence electrons and ano
nas seven valence electrons and another atom Y has two valence electrons.
Write the formula of the compound to
formula of the compound formed between X and Y. Also predict the type o
bond formed between them.​

Answer 1

Answer: 2 valance electron :Mg

7 valance electron:cl

Explanation: X:cl

Y:Mg

Mg + Cl gives rise to MgCl2

Balanced : Mg+ 2Cl gives rise to MgCl2

Ionic bond

Answer 2

X has 7 valence electrons and Y has 2 valence electrons.

We know,

Mg has 2 valence electrons in it's last orbit and Cl has 7 valence electrons in it's last orbit.

So, Y = Mg and X = Cl

Now,

Mg + Cl2 = MgCl2

It is a type ionic bond as Mg releases it's last two electrons and Chlorine accepts it so that both can get the octave form in it's last orbit.

Hope it helps

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