Likewise, radiocarbon dating can provide information on the extent of such mixing.
The processes involved which may mix chemically, physically, or biologically the C atoms of the sample are outlined, and the methods used in practice to reverse this mixing are described.
But you can predict how long it will take a large group of atoms to decay.
The element's half-life is the amount of time it takes for half the parent atoms in a sample to become daughters.
Usually, atoms have an equal number of protons and neutrons.