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प्रश्न
During the emission of a beta particle, the ______ number remains same.
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उत्तर
During the emission of a beta particle, the mass number remains same.
संबंधित प्रश्न
What is meant by radioactivity?
When is said to be the nucleus unstable?
In the following fig. shows a radioactive source S in a thick lead container. The radiations pass through an electric field between the plates P and Q. Complete the diagram to show the paths of α , β and γ radiations.
Why is the source S placed in a thick lead container?
What are the uses of radioactive isotopes in following?
(a) Medical field,
(b) Agriculture,
(c) Industries?
A radioactive substance is oxidized. What changes would you expect to take place in the nature of radioactivity? Explain your answer.
State any two uses of cathode rays.
What is the value of the speed of gamma radiations in air or vacuum?
Two radioactive sources A and B of half lives of 1 hour and 2 hours, respectively, initially contain the same number of radioactive atoms. At the end of two hours, their rates of disintegration are in the ratio of ______.
A radioctive sample decays `7/8` times its original quantity in 15 minutes. The half-life of the sample is ______.
