Question

An element X with electronic configuration of 2,8,2 ionizes to a configuration of 2,8 when it combines with another element Y of configuration 2,8,7 . What type of bonding is formed between the two elements ?

Answer 1

Element X is Magnesium. Element Y is Chlorine. An atom of Magnesium ionizes giving its 2 electrons to atoms of Chlorine. An atom of Chlorine takes an electron from Magnesium and goes to configuration of 2,8,8. Then the ion of Magnesium and the ion of Chlorine form ionic bonding(electrostatic attraction between oppositely charged ions).