When an alpha particle is ejected from a nucleus,the nucleus then has less
A)mass.
B)charge.
C)both of these
D)neither of these

Question

Quizplus · Accepted Answer

An alpha particle is composed of two protons and two neutrons, so its mass is 4 atomic mass units (amu) and its charge is positive 2. When an alpha particle is ejected from a nucleus, the nucleus loses 4 amu of mass and 2 units of positive charge. Therefore, the correct choice is both A (mass) and B (charge).

When an Alpha Particle Is Ejected from a Nucleus,the Nucleus