Question

Explain briefly the arrangement of particles in solids.

Answer 1

Matter:

• Anything that occupies space and has mass is known as matter.
• For example - table, chair, air, etc.

Types of the matter:

• There are majorly three states of matter - solids, liquids, and gas based on the intermolecular distance between the constituent of matter.

Intermolecular space:

• The molecules can move only when there are gaps or space between them, this space is called intermolecular space.
• The order of intermolecular spaces are - Solids < Liquids < Gases.

The intermolecular force of attraction:

• There is an attractive force acting between the molecules called the intermolecular force of attraction

Arrangement of particles:

• In solids, the particles pack together as tightly as possible in a neat and ordered arrangement.
• Due to the high intermolecular forces of attraction that act on the solid particles, intermolecular distances are the lowest between them.
• The order of intermolecular force of attractions is Gases < Liquid < Solids.

Therefore, solid particles are closely packed and have high intermolecular forces of attraction.