Advantages and disadvantages of radiometric dating
However, because it has too many neutrons for the number of protons it contains, it is not a stable atom.
Thirty-one of the labs gave results that the British group called unsatisfactory.
Usually a proton is knocked out of the nitrogen atom's nucleus and is replaced with the neutron.
The proton takes an electron with it and becomes an atom of hydrogen.
As you might guess, radioactive carbon (C) is quite rare.
Only one out of every trillion carbon atoms is C14. The C14 created in the upper atmosphere reacts with oxygen to become carbon dioxide.