Sexy chat completly free - Use of radioisotopes in carbon dating
Use of radioisotopes in carbon dating
), however, is a radioactive isotope, the other two being stable.
More than 1,000 radioactive isotopes of the various elements are known.
Because the cosmic ray bombardment is fairly constant, there’s a near-constant level of carbon-14 to carbon-12 ratio in Earth’s atmosphere.
Organisms at the base of the food chain that photosynthesize – for example, plants and algae – use the carbon in Earth’s atmosphere.
We have already learned that ions are atoms that are either missing or have extra electrons. They are just a little different from every other atom of the same element. Electrons don't have much of a mass when compared to a neutron or proton.