Question

Select all that apply. A beta particle:

Answer 1

In quantum matter, all things in the world are made up of even smaller particles than the atom. These are called the subatomic particles: neutron, proton and electron. A beta particle is simply an electron. It is an electromagnetic particle or wave. Electromagnetic particles are high-energy particles that are emitted by the atom during radioactive decay. Since it is an electron, its charge must be -1 and it must come from outside the nucleus of the atom. From the choices, the answers would be:

is electromagnetic energy 
has a -1 charge

Answer 2

It is an electron

It is emitted from the nucleus

Has a -1 charge

It is these three options. Took a test and it is correct, hope it helps.