Question

which of the following characteristics describes a solid?
particles move randomly in different directions.
takes on the shape of the container in which it is placed.
does not have a definite volume.
particles are arranged in an organized, regular form.
particles expand to fill the volume of space.

Explanation:

To determine the characteristic of a solid, we analyze each option:

• "Particles move randomly in different directions" describes gases (or liquids to some extent with more freedom in gases). Solids have particles with limited movement.
• "Takes on the shape of the container in which it is placed" is a property of liquids and gases. Solids have a definite shape.
• "Does not have a definite volume" is a property of gases. Solids (and liquids) have a definite volume.
• "Particles are arranged in an organized, regular form" is a key characteristic of solids (e.g., crystalline solids have a regular lattice structure, and even amorphous solids have more order than liquids/gases in particle arrangement).
• "Particles expand to fill the volume of space" is a property of gases. Solids have a fixed volume and shape.

Answer:

Particles are arranged in an organized, regular form.