Properties of Solid, Liquid, and Gas:

Intermolecular Forces:
- Solids have strong intermolecular forces which hold their particles tightly together, resulting in a fixed shape and volume.
- Liquids have weaker intermolecular forces compared to solids, allowing their particles to move past each other, giving them a definite volume but not a definite shape.
- Gases have very weak intermolecular forces, causing their particles to move freely and independently, resulting in no fixed shape or volume.

Arrangement of Particles:
- In solids, particles are closely packed in a regular pattern, leading to a fixed shape.
- In liquids, particles are still close together but can move past each other, allowing them to take the shape of their container.
- In gases, particles are far apart and move freely, filling the entire volume of their container.

Energy of Particles:
- Particles in solids have the least amount of energy, vibrating in fixed positions.
- Particles in liquids have more energy than solids, allowing them to flow and take the shape of their container.
- Particles in gases have the most energy, moving rapidly and independently of each other.

Compressibility and Density:
- Solids are not easily compressible due to their closely packed particles and high density.
- Liquids are less compressible than gases but more than solids, with a moderate density.
- Gases are highly compressible due to the large spaces between particles and have low density.

Conclusion:
The different properties of solids, liquids, and gases can be attributed to the varying strengths of intermolecular forces, arrangements of particles, energy levels, compressibility, and density. These factors determine the behavior and physical characteristics of each state of matter.

Because they do not have same shape,size,atomic space and atomic mass,