UK ADR Class 7 Radioactive Practice Questions - UK ADR Dangerous Goods Driver Class 7 Radioactive Exam (Qualifications Scotland DfT) Exam

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Which type of ionizing radiation consists of heavy positively-charged helium nuclei with high ionizing power but low penetrating power easily stopped by a sheet of paper?

Beta particles (β) Alpha particles (α) Gamma rays (γ) Neutron radiation

Correct Answer:

Alpha particles (α)

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