A certain nucleus, after absorbing a neutron, emits a $\beta$^- and then splits into two alpha particles.The (A, Z)of the original nucleus must have been: A)6, 2 B)6, 3 C)7, 2 D)7, 3 E)8, 4

Question

Quizplus · Accepted Answer

The original nucleus must have been 7, 3 because the neutron absorption increases the mass number by 1 and the atomic number by 0, and the emission of a beta particle decreases the atomic number by 1. The splitting into two alpha particles decreases the mass number by 8 and the atomic number by 4.

A Certain Nucleus, After Absorbing a Neutron, Emits A β\betaβ - and Then Splits into Two Alpha Particles

A Certain Nucleus, After Absorbing a Neutron, Emits A $\beta$ ^- and Then Splits into Two Alpha Particles