Matter Properties | MCQs

Explanation

A solid has a fixed shape and a definite volume, regardless of its container.

The particles (molecules, atoms, or ions) in a solid are closely packed and have a fixed position, giving the solid its rigidity and shape.

Explanation

In a solid, the particles (atoms, molecules, or ions) are closely packed and vibrate in place, holding their position in the crystal lattice.

This vibration is due to thermal energy, and the particles oscillate around their fixed positions.

Key Points:

• In a gas, particles are widely spaced and move freely.
• In a liquid, particles are close together but move past each other.

Explanation

• Plasma is a state of matter where atoms or molecules are ionized, meaning they have lost or gained electrons, resulting in a collection of charged particles.
• Plasma is often referred to as the fourth state of matter.
• It is the lightest form of matter, as the particles are highly energetic and widely spaced.