In beta decay, it is found that the energy of the emitted electrons varies and is always less than what is calculated on the basis of the parent and daughter nuclei. This is evidence for the existence of another particle called the
A) gluon.
B) meson.
C) neutrino.
D) quark.
E) positrons.

Question

Quizplus · Accepted Answer

The discrepancy between the calculated energy and the observed energy in beta decay can be explained by the existence of another particle that is emitted along with the electron. This particle is known as the neutrino, which has a very small mass and carries away some of the energy.

In Beta Decay, It Is Found That the Energy of the Emitted