Question

Mark the correct option, for the substance which cannot be emitted by radioactive substance during their decay:

A
electrons
B
protons
C
neutrinoes
D
helium nuclei

Solution

The correct option is C protonsAs we learned in the Property of neutrino which has Zero electric charge. It's mass much less than a mass of an electron. Spin is 1/2 particle. Very weak matter making it quite difficult to detect. During the nuclear process, particles emitted are $\alpha,\ \beta$  or $\gamma$  and the neutrino. No proton or neutrons are emitted. Hence the correct answer is option BPhysicsNCERTStandard XII

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