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Question

A mixture of radioactive substances gives off three types of radiations. Name the radiation which has the highest ionizing power.


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Solution

Radioactivity :-

  1. Any radioactive nucleus emits like α,βandγ particles from an unstable nucleus is called radioactivity.
  2. In all three radiation, α- radiation has the highest ionizing power because α- radiation has the highest ionization energy.
  3. α- radiation has double ionization of helium atoms so α-particles highest ionizing power.

Hence, α-radiation has the highest ionizing power.


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