sentence: Beta decay occurs when there are a lot of neutrons in an atom.
sentences_after: An easy way to think of a neutron is that it is made of one proton and one electron. When there are too many neutrons in one atom nucleus, one neutron will split and form a proton and an electron. The proton will stay where it is, and the electron will be launched out of the atom at incredible speed. This is why Beta radiation is harmful to humans.
concept_name: beta decay
headings: W and Z bosons Creation of W and Z bosons Beta Decay
categories: Elementary particles