In a radioactive decay process, the negatively charged emitted β -particles are (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 orbitting around the nucleus (d) the electrons present inside the nucleus

Answer: (a). There are no free electrons inside the nucleus. In β⁻ decay a neutron in the nucleus changes: n → p + e⁻ + ν, and the electron is ejected. So the answer is (a) the electrons produced as a result of the decay of neutrons inside the nucleus.

In a radioactive decay process, the negatively charged emitted β… | NEET 2007 (AIPMT)

Q32NEET 2007 · AIPMTEasy

Radioactive Decays: Alpha, Beta, Gamma

In a radioactive decay process, the negatively charged emitted $\beta$ -particles are

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Answer: (a)

There are no free electrons inside the nucleus.
In $\beta^-$ decay a neutron in the nucleus changes: $n \to p + e^- + \bar{\nu}$ , and the electron is ejected.
So the answer is (a) the electrons produced as a result of the decay of neutrons inside the nucleus.

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