Question

give a reason y in the formation of electrovalent compound---- magnesium chloride, 1 magnesium atom combines with 2 chlorine atoms to give magnesium chloride (at. no. : Mg = 12, Cl = 17)​

Answer 1

Heya Mate ur answer is...

Magnesium has a valency of 2 and chlorine has of 1 so, in order to form a bond with Mg , Cl need to give 2 electrons so, two chlorine atoms are required to form a bond with Magnesium.

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Answer 2

Because the no. of valence electrons in One chlorine atom is 1 and magnesium atom has 2 valence electrons.So to satisfy it's electronic configuration or complete their octet 2 chlorine atoms combine with one magnesium atom.