Advertisements
Advertisements
Question
A nucleus is \[\ce{^24_11 Na}\] β-radioactive.
Write the equation represent β-decay.
Advertisements
Solution
\[\ce {^24_11 Na -> ^24_12 Mg + ^0_-1 e}\]
RELATED QUESTIONS
When does the nucleus of an atom tend to become radioactive?
State three factors on which the rate of emission of electrons from a metal surface depends
What are free electrons?
How can they be made to leave the metal surface? (State any two ways)
Why is a cathode ray tube evacuated to a low pressure?
State the penetrating range of α, β and γ radiations.
Give the relative ionizing power of α, β and γ radiations.
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?
The count rate of activity of a radioactive sample of a very large population decreased from 1024 to 128 in 3 minutes. Then the rate of disintegration at the end of 5 minutes is ______.
In the following atoms, which one is a radioisotope? Give one use of this isotope.
O16, C14, N14, He4
