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Which of the following substances cannot be emitted by radioactive substances during their decay?

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in Physics – Class 12 by (135k points)
Which of the following substances cannot be emitted by radioactive substances during their decay?

(a) Protons

(b) Neutrinos

(c) Helium nuclei

(d) Electrons

I got this question in an interview.

My question is taken from Nucleus topic in section Nucleus of Physics – Class 12

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The correct option is (a) Protons

For explanation: Protons are not emitted by radioactive substances during their decay. They are positively charged subatomic particles found in the atomic nucleus. The others can be emitted by radioactive substances during their decay.

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