Question

Name the state of matter for the following substances :
Chlorine, copper, iron, bromine, sodium, mercury, lead, oxygen, sulphur.

Answer 1

Anything that occupies space and has mass is called matter. The three forms of matter are:

• Solids
• Liquids
• Gases

The properties of solids are:

1. Solids have a definite shape, size, and volume.
2. They are rigid. They do not possess the property of fluidity.
3. They have high densities and are heavy.
4. They have low compressibility.
5. Rate of diffusion in solids is very very low or negligible.
6. The particles of solids are closely packed hence they do not move but keep on oscillating around their mean positions.
7. They have any number of surfaces.

The properties of liquids are:

1. Liquids have a definite volume but indefinite shape and size.
2. They possess the property of fluidity.
3. They are less dense than solids.
4. They have low compressibility. Due to the presence of empty spaces among the particles they are more compressible than solids.
5. They show diffusion.
6. In liquids, the particles are packed slightly loosely.

The properties of gases are:

1. Gases have indefinite shape, size, and volume.
2. They have maximum fluidity.
3. They show the least rigidity.
4. They possess low densities as compared to solids and liquids.
5. They are highly compressible due to the presence of large interparticle space.
6. They show maximum diffusion due to the continuous movement of particles of gases.
7. They occupy the shape and volume of the container in which they are kept.

The state of matter for the following substances :
Chlorine, copper, iron, bromine, sodium, mercury, lead, oxygen, sulphur.

chlorine	gas
copper	solid
iron	solid
bromine	liquid
sodium	solid
mercury	liquid
lead	solid
oxygen	gas
sulphur	solid