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radioactive dating is also called-5

We thus have three different isotopes of carbon: Carbon-12 with 6 protons and 6 neutrons in the nucleus, Carbon-13 with 6 protons and 7 neutrons in the nucleus, Carbon-14 with 6 protons and 8 neutrons in the nucleus.

Both carbon-12 and carbon-13 are stable, but carbon-14 is unstable, which means that there are too many neutrons in the nucleus. As a result, carbon-14 decays by changing one proton into a neutron and becoming a different element, nitrogen-14 (with 7 protons and 7 neutrons in the nucleus).

When we age date a planet, we are actually just dating the age of the surface, not the whole planet.

We can get absolute ages only if we have rocks from that surface.

In history, archeology and science, the process of dating discoveries helps provide important information about the find.