WHAT IS THE ATOMICITY OF AN ELEMENT HOW IS IT USEFUL IN WRITING THE CHEMICAL FORMULA OF AN ELEMENT - Chemistry - The nature of matter

Question

WHAT IS THE ATOMICITY OF AN ELEMENT?HOW IS IT USEFUL IN WRITING
THE CHEMICAL FORMULA OF AN ELEMENT?

Shubhangini Kumari · Accepted Answer

Atomicity:
The total number of atoms of
element present in one molecule of that element or substance, is
called as atomicity of that element/substance

The atomicity may be different
depending on no of atoms as; monoatomic for 1, diatopmic for 2
etc

For example: In He or Ne, they
are inert gases which do not combines and so they are
monoatomic ; He,
Ne

In, Oxygen: two atoms combine to
form a molecule so its diatomic;O2

In Ozone ;
Triatomic
;O3

In Sulphur:
Polyatomic ;
S8

In case of HCl; the atomicity is
2 (diatomic)as
it cis made up of 1/2 molecule of Chlorine and 1/2 molecule of
hydrogen

So, if atomicity of H anAd Cl is
2 then atomicity of HCl will also be two

It is important to explain the
composition of elements in each compound or
molecule

WHAT IS THE ATOMICITY OF AN ELEMENT?HOW IS IT USEFUL IN WRITING THE CHEMICAL FORMULA OF AN ELEMENT?