Chemistry, asked by sushana, 10 months ago

valency of magnesium is 2, why?

Answers

Answered by Poornica
1

Answer:

Since magnesium has 2 electrons in it's outermost shell, hence it's valency is 2 I.e. it will lose it's 2 electrons to achieve noble gas configuration (2,8).

Explanation:

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Answered by henishma234
1

Answer:

we know that the atomic number of my is 12.

according to electronic configuration, we can arrange

1st shell=2

2nd shell=8

3rd shell=2

we know that the valency is the number of electrons in the outer most shell. here mg has 2 in its putter most shell.

therefore the valence of mg is 2

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