U4: Physical Properties of Materials Review

Front

What are ionic compounds?

Back

Ionic compounds are substances formed from the electrostatic attraction between positively and negatively charged ions. They typically have high melting points (1000°C-3000°C) and are often soluble in water.

Front

What is a characteristic of gases?

Back

Gases have fast-moving particles and do not have a definite shape or volume.

Front

What type of material shatters easily, does not conduct heat or electricity, and is not shiny?

Back

This describes a nonmetal.

Front

What state of matter is represented by particles that are close together but can move past each other?

Back

This represents a liquid.

Front

What does ductile mean?

Back

Ductile means a material can be stretched into a wire.

Front

What are the properties of metals?

Back

Metals are typically shiny, good conductors of heat and electricity, malleable, and ductile.

Front

What is the definition of a solid?

Back

A solid has a definite shape and volume, with particles that are closely packed together.

Front

What is the definition of a liquid?

Back

A liquid has a definite volume but no definite shape, with particles that are close together but can move freely.

Front

What is the definition of a gas?

Back

A gas has neither a definite shape nor a definite volume, with particles that are far apart and move rapidly.

Front

What is a metalloid?

Back

Metalloids are elements that have properties of both metals and nonmetals, often used in semiconductors.