Which of the following statements is true?

Ca does not react with other atoms because it has 8 electrons in its outermost shell.

Mg does not react with other atoms because its outermost shell is complete.

Ca is more reactive than K because Ca has to lose one more electron than K to complete its outermost shell.

Mg is less reactive than Na because Mg has to lose one more electron than Na to complete its outermost shell.

Question

Jamari Mckay

Chemistry

9 October, 00:16

Which of the following statements is true?

Ca does not react with other atoms because it has 8 electrons in its outermost shell.

Mg does not react with other atoms because its outermost shell is complete.

Ca is more reactive than K because Ca has to lose one more electron than K to complete its outermost shell.

Mg is less reactive than Na because Mg has to lose one more electron than Na to complete its outermost shell.

+2

Answers (1)

Know the Answer?

Jaydin Duran · Answer 1

The last statement is true. which is:

Mg is less reactive than Na because Mg has to lose one more electron than Na to complete its outermost shell.

Explanation:

Mg belongs to group II and Na belongs to group I.

Group II elements are less reactive than Group I elements. This is because it is more difficult to lose two electrons compared to losing just one electron.