Explain the states of matter.

(N/A) Matter exists in three states: solid,liquid,and gas.
The stability of a particular state of matter at a given temperature and pressure depends on the net effect of two opposing factors: intermolecular forces and thermal energy.
Intermolecular forces tend to keep the molecules (or atoms or ions) closer together,whereas thermal energy tends to keep them apart by making them move faster.
When intermolecular forces are strong enough to hold the particles together at fixed positions,the substance exists in the solid state.
In this state,particles only oscillate about their mean positions.