Radioactive Decay

Process where some substances spontaneously emit particles from the nucleus

• Chemical Reaction

• Radioactivity

• Isotope Decay

• Nuclear Release

A helium nucleus is also known as a(n)

• Alpha particle

• Beta particle

• Gamma ray

• None of these

A beta particle is also known as a(n)

• A helium nucleus

• An electron

• A proton

• A neutron

A high energy radiation that possesses no mass is a(n)

• Alpha particle

• Beta particle

• Gamma ray

• None of these

The half life of an element is the amount of time needed for 1/2 of a radioactive sample to become stable.

• True

• False

The half-life for every radioactive element is the same.

• True

• False

A primary factor that can determine nuclear stability is its ratio of neutrons to protons.

• True

• False

A reaction that involves a change in an atom's nucleus is called a

• Chemical reaction

• Nuclear reaction

• Thermal reaction

• Beta reaction

An alpha particle

• is a helium nucleus

• is two protons and two neutrons

• has a +2 charge

• All of these

Many times when radioactive decay occurs, different elements are produced.

• True

• False