Question

define atomicity give example of poly atomic ions

Answer 1

Atomicity is the number of atoms of an element present in one molecule of that element. For example, there are 2 atoms of hydrogen present in H2 molecule. ... Thus, CaCl2 involves three atoms - one of calcium and two of chlorine. There are total 5 atoms in a sulphate ion - one of sulphur and four of oxygen.

Answer 2

Atomicity is defined as the total number of atoms present in one molecule of an element, compound or a substance. For example, in nitrogen (N2) molecule, there are 2 atoms of nitrogen.