Answer to Question #145263 in Organic Chemistry for Maloth VAMSHI KRISHNA

Question

Why cacl not form cacl2

Answer 1

Because Calcium (Ca) has an oxidation number of +2.

Calcium needs two electrons to be stable but a Chlorine atom can only give out one electron.

Therefore, for Calcium to be stable, 2 chlorine atoms will give an electron each to Calcium

In order words, balanced and stable Calcium chloride has one atom of Ca and 2 atoms of Cl, forming 1Ca + 2Cl -- CaCl$_2$