Advertisements
Advertisements
Question
Represent the change in the nucleus of a radioactive element when a β particle is emitted.
Advertisements
Solution
In an unstable nucleus, the neutron is changed into a proton by emitting a beta particle. This is represented as:
\[\ce{\underset{(neutron)}{^1_0n} -> \underset{(proton)}{^1_1P} + \underset{(β-particle)}{^0_{-1}e}}\]
RELATED QUESTIONS
How can they be made to leave the metal surface? (State any two ways)
A radioactive substance is oxidized. Will there be any change in the nature its radioactivity? Give a reason for your answer
Name a gas caused by the Greenhouse effect
State any two precautions to be taken while handling radioactive substances.
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?
A radioactive nuclide `""_86^226` Ra decays by emission of two alpha particles, one beta particle and gamma rays. Which of the following is the resulting nuclide X?
State any two uses of cathode rays.
What is the value of the speed of gamma radiations in air or vacuum?
State one use of radio-isotopes.
