P4 - Radioactivity and Atomic Structure CH AQA Physics

Has the symbol

• Alpha

• Beta

• Gamma

Has the symbol

• Alpha

• Beta 

• Gamma

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

• Nuclear Fusion

• Radioactive Decay

• Nuclear Fission

• Ionisation

Which type of radioactive decay involves the emission of a helium nucleus?

• Alpha Decay

• Beta Decay

• Gamma Decay

• Neutron Emission

What is the half-life of a radioactive substance if it takes 10 hours for its activity to reduce to one-quarter of its original value?

• 2.5 hours

• 5 hours

• 10 hours

• 20 hours

Which subatomic particle is found in the nucleus of an atom and has no electric charge?

• Proton

• Neutron

• Electron

• Positron

What is the term for atoms of the same element that have different numbers of neutrons?

• Isotopes

• Ions

• Molecules

• Compounds

Which of the following is a common application of isotopes in medicine?

• Carbon Dating

• Radiotherapy

• Nuclear Power

• Fertiliser Production

What is the primary method used to detect alpha particles?

• Geiger-Müller Tube

• Cloud Chamber

• Scintillation Counter

• Bubble Chamber

Which type of radiation is the most penetrating?

• Alpha Radiation

• Beta Radiation

• Gamma Radiation

• Neutron Radiation