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प्रश्न
It is advised not to touch a radioactive substance by hand. Give reason.
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उत्तर
The reason is that the radiations (α, β and γ) emitted by a radioactive substance have large penetrating power.
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संबंधित प्रश्न
State the energy conversion taking place in a cathode ray tube
Write one use of cathode ray tube.
What is meant by radioactivity?
When is said to be the nucleus unstable?
What do you mean by Atomic mass
Define the term radioactivity.
Justify with reason, whether the following nuclear reactions are allowed or not.
\[\ce{^A_Z X -> ^A_{Z + 1}Y + ^0_{-1}β}\]
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State one use of radio-isotopes.
88Ra226 experiences three α - decay. Find the number of neutrons in the daughter element.
