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प्रश्न
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उत्तर
The substance's rate of decay and the type of radiation it emits are unaffected by any physical or chemical changes, including variations in temperature and pressure, extreme heating, freezing, the effect of strong electric and magnetic fields, chemical treatment, oxidation, etc.
This demonstrates unequivocally that the orbital electrons, which are susceptible to such alterations, cannot be the cause of the radioactive event. Thus, the nucleus should be the source of radioactivity. The phenomenon of radioactivity is thus nuclear.
संबंधित प्रश्न
A radioactive substance is oxidized. Will there be any change in the nature its radioactivity? Give a reason for your answer
Write one use of cathode ray tube.
What is thermionic emission?
Give the relative ionizing power of α, β and γ radiations.
State two characteristics of the substance used as thermionic emitter.
How is a cathode ray beam affected while passing through an electric field?
What are ‘Becquerel rays’?
Are all the radiations viz. α, β and γ emitted in a single radioactive decay?
88Ra226 experiences three α - decay. Find the number of neutrons in the daughter element.
