Nuclear Decay

Front

What has the lowest penetrating power and can only penetrate 0.05 mm into the body?

Back

Alpha particles can be stopped by a piece of paper or clothing.

Front

What is a helium nucleus with two protons and two neutrons called?

Back

An alpha particle.

Front

What are different forms of the same element that have the same number of protons but a different number of neutrons called?

Back

Isotopes.

Front

What process involves the joining of small nuclei?

Back

Nuclear fusion.

Front

What type of radiation is emitted during alpha decay?

Back

Alpha particles.

Front

What is the term for the splitting of a heavy nucleus into smaller nuclei?

Back

Nuclear fission.

Front

What type of radiation can penetrate the skin but is stopped by a few millimeters of plastic or glass?

Back

Beta particles.

Front

What is the term for the decay of a neutron into a proton, emitting a beta particle?

Back

Beta decay.

Front

What type of radiation has the highest penetrating power and can pass through the human body?

Back

Gamma rays.

Front

What is the process called when an unstable nucleus loses energy by emitting radiation?

Back

Radioactive decay.