Physical Science 6.4

Multiple Choice

What force holds the atoms of a metal together

• the attraction of a positively charged atom to a negatively charged atom

• the sharing of electrons between two atoms

• the gravitational force between dense metal atoms

• the attraction between metal cations and a pool of shared electrons

Multiple Choice

Why are solid metals good conductors of electric current?

• Metals are good conductors because they can be drawn into wires

• Metals are good conductors because they are solids at room temperature

• The nuclei of metal atoms can move easily because they repel one another

• Shared electrons are able to flow freely through the metal

Multiple Choice

The properties of bronze depend on the ratio of iron, carbon, and small amounts of other elements in the alloy

• true

• false