Quiz 9: The Nucleus, radioactivity, and Nuclear Medicine

The term LD₅₀ means the dose of toxic material that will be needed to kill 50% of the exposed population within 30 days.

When the strength of a radioactive source is specified in curies,it provides no information on the biological effects of the radiation.

Doubling the distance from a source of radioactivity will halve the radiation intensity.

Commercial nuclear power plants use the fusion process to generate electrical energy.

The sun's source of energy is nuclear fission.

When a molecule is hit by gamma radiation,it may become ionized.