Nuclei - Result Question 76
77. In a radioactive decay process, the negatively charged emitted $\beta$-particles are
[2007]
(a) the electrons produced as a result of the decay of neutrons inside the nucleus
(b) the electrons produced as a result of collisions between atoms
(c) the electrons orbiting around the nucleus
(d) the electrons present inside the nucleus
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Answer:
Correct Answer: 77. (a)
Solution:
- (a) In beta minus decay $(\beta^{-})$, a neutron is transformed into a proton, and an electron is emitted from the nucleus along with antineutrino.
$n=p+e^{-}+\bar{{}v}$
