Question

How is compound XY different from elements X and Y?

Answer 1

Answer:

Compound XY contains the different atoms of X and Y while elements X and Y both contains the same atoms of X and Y respectively.

An element is a substance that is composed of atoms of the same kind. For example, element X contains only atoms of X while element Y contains only atoms of Y. On the other hand, a compound is a substance made from the chemical combination of two or more elements, hence, a compound combines different atoms. This is the case of Compound XY as it contains different atoms of different elements.  

Therefore, Compound XY is different from elements X and Y in the sense that Compound XY contains two different atoms from different elements (X and Y) while both elements X and Y are individually made up of only one type of atom each i.e. element X contain X atoms only and element Y contain Y atoms only.

Explanation:

Answer 2

E.N. difference Type of bond 0 Nonpolar covalent 0-1.6 Polar covalent 1.7 50% covalent , 50% ionic 1.7-3.3 Mainly ionicIt is the Gallis scale that explains the type of bond with E.N. difference,

so the compound XY would be ionic if the E.N. difference between X and Y is more than 1.7.