One direction dating age limits
However, because it has too many neutrons for the number of protons it contains, it is not a stable atom.
Every 5,730 years, approximately half of this radioactive carbon spontaneously converts itself back into nitrogen by emitting an electron from a neutron.
BASIS OF RADIOCARBON DATING Radiocarbon dating compares the amount of normal carbon with the amount of radioactive carbon in a sample.
This atom is not stable, and will break down, releasing nuclear energy in the process.
...[Some authors have said] they were "not aware of a single significant disagreement" on any sample that had been dated at different labs.
Such enthusiasts continue to claim, incredible though it may seem, that "no gross discrepancies are apparent".
This limit is currently accepted by nearly all radiocarbon dating practitioners.
It follows that the older a date is, even within this 'limit', the greater are the doubts about the date's accuracy.
As you might guess, radioactive carbon (C) is quite rare.