Question

A. Difference the following

Monoatomic ,Diatomic ,Triatomic and Polyatomic

Answer 1

Monoatomic	Diatomic	Triatomic	Polyatomic
A Molecule contain only one atom.	A molecule contains two atom	A molecule contains three atoms.	A molecule contains more than 3 atoms.It may be 4 ,5 , etc.
$\mathrm{Na},\mathrm{Ne},\mathrm{Ar}\mathrm{etc}$ are examples	oxygen(${\mathrm{O}}_2$), hydrogen (${\mathrm{H}}_2$) etc	Water(${\mathrm{H}}_2\mathrm{O}$)	Phosphorus(${\mathrm{P}}_4$) contains 4 atoms. The sulfur molecule contains 8 atoms (${\mathrm{S}}_8$).