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:

  1. (a) In beta minus decay $(\beta^{-})$, a neutron is transformed into a proton, and an electron is emitted from the nucleus along with antineutrino.

$n=p+e^{-}+\bar{{}v}$