Topic 3

Front

What is an atom?

Back

The smallest unit of an element that retains the properties of that element.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What are the properties of metals?

Back

Metals are typically malleable, ductile, good conductors of heat and electricity, and have high melting points.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

What are the three states of matter?

Back

Solid, liquid, and gas.

Front

How do particles behave in a solid?

Back

Particles are closely packed together and vibrate in place.

Front

How do particles behave in a liquid?

Back

Particles are close together but can move past one another, allowing liquids to flow.

Front

How do particles behave in a gas?

Back

Particles are far apart and move freely, filling the space available.

Front

What happens to the distance between particles in a liquid when energy is removed?

Back

The distances between particles decreases.