Question

Radioactive sources for use in school experiments are always stored in a container lined with which metal? give the full name, not the symbols.

Answer 1

For use in educational experiments, radioactive materials are always kept in a lead-lined container (pb).

Various radiation types?

• Radiation comes in 3 forms: Paper is easily absorbed by light materials like alpha radiation because it has a high ionization energy.
• Beta particles: mild ionization; can be absorbed by paper-thin metal foil.
• Gamma rays are a weak form of ionization energy, yet they are nonetheless quite harmful because they can pass through lead walls up to several thicknesses.
• To be on the safe side, the walls of the container for storing radioactive materials are often lined with thick lead wall because the majority of radioactive materials emit all three radiations.      

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