States of matter 

Define matter

The idea of divisibility of matter was considered in India around 500 bc.An Indian philosopher mharishi kannad postulated on divinding matter.

Origin of matter

Different types of scientists and their contribution in matter.

About atom molecules and ions 

About molecules formation of molecules 

Molecules 

A molecules is a general group of 2 or more atom chemically bonded tightly held by attractive force.

Molecules of an element constituted by same type of atom o2 ,N2,O3

Atom of different elements join in definite portion to form compounds

Example NH3,H2O

Molecular mass

the molecular mass of substance is the sum of atomic mass of atom in a molecules of substance 

Rutherford model of atom

Thomson model of atom

Drawback of Rutherford model of atom.

About ions formation of ions

Anion and cation 

Different states of matter 

Solid liquid gas plasma Bose instine 

Their packing of solid liquid gas

Basic to advance level question

Proper dought clear session 

Live dought session