Question

multiple choice 2 points
when a neutron inside the nucleus of an atom breaks apart into a proton and an electron, the electron is ejected from the nucleus at high speed. this type of decay is
known as decay.
alpha
beta
gamma
primary

Explanation:

In beta decay, a neutron in the nucleus transforms into a proton and an electron. The electron is then ejected from the nucleus at high speed. This process is characteristic of beta decay. Alpha decay involves the emission of an alpha particle (a helium - 4 nucleus). Gamma decay is the emission of gamma rays (high - energy photons) to release excess energy in the nucleus. "Primary" is not a type of radioactive decay in the context of nuclear physics.

Answer:

beta