For inorganic materials, such as rocks containing the radioactive isotope rubidium, the amount of the isotope in the object is compared to the amount of the isotope's decay products (in this case strontium).The object's approximate age can then be figured out using the known rate of decay of the isotope.All living things have carbon in them; but a small amount of that carbon is radioactive. The law of conservation and mass states that matter can not be destroyed nor created.So that is why carbon-14 is used for radioactive dating.No form of radioactive dating produces exact results.But results can be gotten that are surprisingly accurate.Radioactive dating of rock samples determines the age of rocks from the time it was formed.
Some types are useful in certain situations and for certain materials, while others are perfect for other jobs.
It is essentially a big sequence: This comes first, that comes next, this comes last.
This method is a bit vague, which is why modern scientists have developed many methods by which to determine the absolute age of Earth materials.
Radioactive dating refers to the process of measuring the age of an object using the amount of a given radioactive material it contains.
Relative dating, meanwhile, measures the order of past events, without determining their absolute age.