U8 Nuclear (easier)

Front

What is the process by which nuclei having low masses are united to form nuclei with larger masses?

Back

Fusion

Front

What happens to the level of radiation produced by a radioactive material over time?

Back

It decreases.

Front

What type of shield is effective in blocking gamma rays?

Back

Thick lead.

Front

What is the term for the process of nuclear change in an atom of radioactive material?

Back

Nuclear decay.

Front

What is the process called that produces lighter nuclei from heavier nuclei?

Back

Fission.

Front

Define nuclear fusion.

Back

A process where two light atomic nuclei combine to form a heavier nucleus, releasing energy.

Front

What is nuclear fission?

Back

A process where a heavy nucleus splits into two lighter nuclei, accompanied by the release of energy.

Front

What is radioactive decay?

Back

The process by which an unstable atomic nucleus loses energy by emitting radiation.

Front

What are isotopes?

Back

Atoms of the same element that have the same number of protons but different numbers of neutrons.

Front

What is the role of a neutron in a nucleus?

Back

Neutrons help to stabilize the nucleus by offsetting the repulsive forces between protons.