Pre Unit 3 article

What are the three types of nuclear reaction?

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What particle is released as part of alpha decay?

• Beta particle
• Gamma ray
• Alpha particle

Match the following particles with their descriptions:

• Antineutrino

• Serves to counterbalance the positive charge gained by transforming a neutron to a proton

• Positron

• Has no charge and barely any mass

• Electron

• Looks and acts like an electron but has a positive charge

Of the three types, which is the ONLY type of nuclear decay that ADDS a Proton to an atom?

• Beta plus decay (β+ decay)
• Gamma decay (γ decay)
• Alpha decay (α decay)
• Beta minus decay (β- decay)

Of the three types of decay, which is the ONLY one that DOES NOT impact Proton count?

• Alpha decay
• Beta decay
• Gamma decay

Which element is used as a tracer element for imaging inside patients' bodies due to its gamma decay?

• Hydrogen

• Carbon

• Technetium

• Oxygen

Match the following concepts with their explanations:

• Shielding materials

• Emits a photon when an electron moves to a lower energy level

• Low-energy gamma decay

• Can be detected using a specialized scanner

• High-energy photon

• Used to protect astronauts from cosmic radiation

What is released as part of Gamma decay?

• Neutrons
• Alpha particles
• Gamma radiation
• Beta particles

What particle is released as part of Beta decay?

• Alpha particle
• Proton
• Beta particle (electron or positron)

To travel to other worlds, spacecraft must be protected from "cosmic radiation/rays". What type of nuclear radiation is this more commonly known as?

• Alpha

• Beta

• Gamma