Radioactivity Review for Year 10 in 2021

Which particles make up the nucleus of an atom?

• protons and neutrons
• electrons and protons
• electrons, protons, and neutrons
• electrons and neutrons

What makes an isotope radioactive?

• Having an atomic number above 81

• An unstable nucleus

• Contaminated sewage

• It decays over time

In order of most to least penetrating radiation we have

• Alpha , Beta,  Gamma
• Beta , Gamma , Alpha
• Gamma, Beta, Alpha
• Gamma, Alpha, Beta

What is a beta radiation?

• A helium nucleus

• A fast-moving electron

• An electromagnetic wave

What is an alpha radiation?

• A helium nucleus

• A fast-moving electron

• An electromagnetic wave

What is a gamma radiation?

• A helium nucleus

• A fast-moving electron

• An electromagnetic wave

Which nuclear radiation is stopped by thin paper?

• Alpha

• Beta

• Gamma

Which nuclear radiation passes through thin paper but is stopped by 3mm of Aluminium?

• Alpha

• Beta

• Gamma

Which nuclear radiation passes through thin paper and 3mm of Aluminium but is stopped by many centimetres of lead?

• Alpha

• Beta

• Gamma

Which nuclear radiation is most ionizing?

• Alpha

• Beta

• Gamma