Is carbon 12 a dating method

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Unfortunately, we aren't able to reliably date artifacts beyond several thousand years.Scientists have tried to extend confidence in the carbon dating method further back in time by calibrating the method using tree ring dating.Atoms are made up of much smaller particles called protons, neutrons, and electrons.Protons and neutrons make up the center (nucleus) of the atom, and electrons form shells around the nucleus.

Unfortunately the ratio of carbon-12 to carbon-14 has yet to reach a state of equilibrium in our atmosphere; there is more carbon-14 in the air today than there was thousands of years ago.

Unfortunately, tree ring dating is itself not entirely reliable, especially the "long chronology" employed to calibrate the carbon dating method.

The result is that carbon dating is accurate for only a few thousand years. This fact is born out in how carbon dating results are used by scientists in the scientific literature.

The number of neutrons in the nucleus can vary in any given type of atom.

So, a carbon atom might have six neutrons, or seven, or possibly eight—but it would always have six protons.

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