Existence of molecules in nature

molecules exist in the two ways....

1: Homoatomic molecules :

molecules are made up of similar atoms.

2: Heteroatomic molecules :

Molecules are made of the dissimilar atom.

Note: while you writing a chemical reaction you always remember that the atoms always write in its molecular form except inert atom.. OK.......

Now whose atoms exist in molecular formula especially homoatomic molecules which gives a correct a chemical reaction..

Homoatomic molecules : types*

Monoatomic molecules :

He, Ne, Ar, kr, Xn, Rn.

Diatomic molecules:

H-H -------> H2 ( Hydrogen molecule)

N-N --------> N2( Nitrogen molecule)

O-O ---------> O2( oxygen molecule)

F-F ---------> F2 ( fluorine molecule)

Cl- Cl --------> Cl2 Chlorine molecule)

Br-Br ---------> Br2

I - I -----------> I2

Triatomic molecules:

Three similar atom

Only one example ....

O3 (Ozone)

Tetra-atomic

molecules

P4 (phosphorous)

Polyatomic molecules:

S8 ( sulphure)

Heteroatomic molecules:

Similarly

Diatomic molecules......

HCl, HBr, HI , CO etc

Triatomic moleculs

H2O, CO2, NO2 , SO2 etc

Tetraatomic molecules

H2O2, SO3, etc

Polyatomic molecules

More than four atom

H2SO4, PbSO4 etc

Basic Chemistry