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प्रश्न
Which part of the atom undergoes a change in the process of radioactive decay?
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उत्तर
The nucleus of the atom undergoes a change in the process of radioactive decay.
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संबंधित प्रश्न
State the energy conversion taking place in a cathode ray tube
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?
A certain nucleus A (mass number 238 and atomic number 92) is radioactive and becomes a nucleus B (mass number 234 and atomic number 90) by the loss of one particle.
What particle was emitted?
State two properties that a substance should possess when used as a thermionic emitter.
How is a zinc sulphide screen affected when a cathode ray beam strikes it?
State any two uses of cathode rays.
What do you understand by the term radioactivity?
Complete the following radioactive reaction:
\[\ce{^-_-X -> ^-_-Y + ^4_2He -> ^234_91Z + ^0_-1e}\]
