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    Uses mass spectrometry radioactive dating

    As we’re about to see, radioactivity decreases with time because there are fewer undecayed nuclei around TO decay.A technique called mass spectroscopy enables the carbon-14 and carbon-12 atoms to be counted directly. By finding the proportion of carbon-14 atoms remaining you can calculate the age of the sample.This decay process leads to a more balanced nucleus and when the number of protons and neutrons balance, the atom becomes stable.

    This means the sample needs to be quite big, typically a few grams, otherwise the radioactivity is too small to measure.The technique of comparing the abundance ratio of a radioactive isotope to a reference isotope to determine the age of a material is called radioactive dating.Many isotopes have been studied, probing a wide range of time scales.Radioactive dating is a method of dating rocks and minerals using radioactive isotopes.This method is useful for igneous and metamorphic rocks, which cannot be dated by the stratigraphic correlation method used for sedimentary rocks. Some do not change with time and form stable isotopes (i.e.

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