Types of Nuclear Radiation

Multiple Choice

What happens when an unstable atom emits excess energy from its nucleus?

• It becomes a stable atom and releases particles and energy.

• It explodes and disappears completely.

• It turns into a different element without releasing anything.

• It absorbs more energy and becomes more unstable.

Multiple Choice

Which type of radiation is identical to a helium nucleus?

• Alpha particles

• Beta particles

• Gamma rays

• Neutrons

Multiple Choice

Which materials can stop beta particles?

• Paper or skin

• Metal or wood

• Thick layers of concrete

• Plastic

Multiple Choice

Arrange the following types of radiation in order of increasing penetrating power: Alpha, Beta, Gamma.

• Alpha < Beta < Gamma

• Gamma < Beta < Alpha

• Beta < Alpha < Gamma

• Alpha < Gamma < Beta

Multiple Select

Select all correct statements about beta decay as shown in the image.

• A neutron in the nucleus changes into a proton and an electron.

• The atomic number increases by one.

• A beta particle is emitted.

• The mass number increases by one.

Multiple Choice

Which of the following is released during gamma decay as shown in the diagram?

• Alpha particle

• Beta particle

• Gamma ray

• Neutron

Multiple Choice

What happens to an unstable atom in order to become more stable?

• It absorbs energy and particles

• It emits excess energy and particles

• It splits into two atoms

• It combines with another atom