The mass spectrometer is able to give information about the type and amount of isotopes found in the rock.
Scientists find the ratio of parent isotope to daughter isotope.
This technique relies on the property of half-life.
Half-life is defined as the time it takes for one-half of a radioactive element to decay into a daughter isotope.
One half-life is the amount of time required for of the original atoms in a sample to decay.Over the second half-life, of the atoms remaining decay, which leaves of the original quantity, and so on.In other words, the change in numbers of atoms follows a geometric scale as illustrated by the graph below.other carbon isotopes in the same ratio as exists in the atmosphere.This is an important topic, for evolutionists want the history of earth to span long ages in the hopes that this will make the origin and evolution of life more likely.Yes, an understanding of dating methods is important, but we should keep in mind that whether or not these dating methods are accurate, really has no direct relation to whether evolution has ever occurred or could occur. Evolution can only occur by a sequence of, first, production of matter from nothing, or origin of matter.As radioactive isotopes of elements decay, they lose their radioactivity and become a brand new element known as a daughter isotope.