At the same time, the king was required to perform certain rituals that were meant to align the intentions of this world with that of the pantheon.
By measuring how much C14 remains in a sample of organic material, we can estimate its age within a range of dates.
If there are too many or too few neutrons, the atom is unstable, and it sheds particles until its nucleus reaches a stable state.
Think of the nucleus as a pyramid of building blocks.
Only hard parts, like bones and teeth, can become fossils.
These are chemical elements, like carbon or uranium, that are identical except for one key feature -- the number of neutrons in their nucleus.
Usually, atoms have an equal number of protons and neutrons.
Today's knowledge of fossil ages comes primarily from radiometric dating, also known as radioactive dating.
Radiometric dating relies on the properties of isotopes.