Radioactive Decay Quiz

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

• Beta decay

• Gamma decay

• Alpha decay

• Neutron emission

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DOK Level 2: Skill/Concept

What is the primary difference between alpha and beta particles in terms of their composition?

• Alpha particles are electrons, while beta particles are protons.

• Alpha particles are helium nuclei, while beta particles are electrons or positrons.

• Alpha particles are neutrons, while beta particles are protons.

• Alpha particles are photons, while beta particles are neutrons.

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DOK Level 2: Skill/Concept

Which type of radiation is most penetrating and requires thick lead shielding for protection?

• Alpha particles

• Beta particles

• Gamma rays

• Neutrons

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DOK Level 2: Skill/Concept

Explain why alpha particles are less penetrating than beta particles and gamma rays.

• Alpha particles have a larger mass and charge, causing them to lose energy quickly.

• Alpha particles are neutral and do not interact with matter.

• Alpha particles travel at the speed of light.

• Alpha particles are composed of photons.

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DOK Level 3: Strategic Thinking

Which of the following safety measures is most effective for handling beta-emitting radioactive materials?

• Wearing a lead apron

• Using a plastic shield

• Wearing a gas mask

• Using a neutron detector

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DOK Level 2: Skill/Concept

Describe the process of beta decay in terms of particle transformation.

• A neutron transforms into a proton and emits an electron or positron.

• A proton transforms into a neutron and emits a photon.

• A neutron transforms into a photon and emits a proton.

• A proton transforms into a neutron and emits an alpha particle.

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DOK Level 3: Strategic Thinking

Which type of radioactive decay does not change the atomic number of the element?

• Alpha decay

• Beta decay

• Gamma decay

• Positron emission

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DOK Level 2: Skill/Concept

Compare the ionizing power of alpha, beta, and gamma radiation.

• Alpha has the highest ionizing power, followed by beta, then gamma.

• Beta has the highest ionizing power, followed by alpha, then gamma.

• Gamma has the highest ionizing power, followed by beta, then alpha.

• All have the same ionizing power.

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DOK Level 3: Strategic Thinking

What is the main reason gamma rays are used in medical treatments such as cancer radiotherapy?

• They have high ionizing power.

• They can penetrate deep into tissues.

• They are easily absorbed by the skin.

• They are less harmful than alpha and beta particles.

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DOK Level 2: Skill/Concept

Identify the correct sequence of penetration power from least to most for alpha, beta, and gamma radiation.

• Gamma < Beta < Alpha

• Alpha < Gamma < Beta

• Alpha < Beta < Gamma

• Beta < Alpha < Gamma

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DOK Level 2: Skill/Concept