C1.1.1-particles Flashcards
What is a particle?
A tiny bit of matter that can be large enough to see or too small to see, even with a microscope.
Name three examples of particles in chemistry.
- Atoms
- Ions
- Molecules
What does the particle model describe?
How particles are arranged and how they move in solids, liquids, and gases.
What is the arrangement of particles in a solid?
Regular arrangement and very close together.
What is the main movement of particles in a solid?
Vibrate about fixed positions.
What is the arrangement of particles in a liquid?
Random arrangement and close together.
What is the main movement of particles in a liquid?
Move around each other.
What is the arrangement of particles in a gas?
Random arrangement and far apart.
What is the main movement of particles in a gas?
Move quickly in all directions.
Why can’t you compress a substance in its solid or liquid state?
There is no space for the particles to move into.
What is the fixed shape characteristic of a solid due to particle arrangement?
A solid has a fixed shape and cannot flow.
Describe the main difference between the arrangement of particles in the liquid state and particles in the gas state.
Liquid particles are close together while gas particles are far apart.
Why can you compress a substance in its gas state?
Gas particles are far apart, allowing space for compression.
What is a three-dimensional (3D) object?
An object that has height, width, and depth.
What is the advantage of using isometric diagrams in representing particles?
They provide a 3D perspective of the arrangement.
