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प्रश्न
Represent the change in the nucleus of a radioactive element when a β particle is emitted.
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उत्तर
In an unstable nucleus, the neutron is changed into a proton by emitting a beta particle. This is represented as
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संबंधित प्रश्न
State three factors on which the rate of emission of electrons from a metal surface depends
Write one use of cathode ray tube.
What is thermionic emission?
Draw a diagram of a simple atom showing the nucleus and electrons. In this atom:
(a) What type of charge will there be on the nucleus?
(b) What is the value of this charge?
What are the uses of radioactive isotopes in following?
(a) Medical field,
(b) Agriculture,
(c) Industries?
A radioactive source emits three types of radiations.
Name the radiation which has the highest ionizing power.
Justify with reason, whether the following nuclear reactions are allowed or not.
\[\ce{^A_Z X -> ^A_{Z - 2}X + ^4_{2}He}\]
The half-life of a radioactive nuclide is 100 hours. The fraction of original activity that will remain after 150 hours would be ______.
