Plot of the remaining quantity of an unstable isotope on the Y-axis, against time (usually in half-life increments) on the X-axis. Such a plot is identical for all unstable isotopes, such as radiocarbon. It is the half-life that varies among elements.
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alpha decay (Radioactive decay in which the nucleus of the parent atom loes a positively charged alpha ...)
beta decay (Radioactive decay in which the nucleus of an isotope emits an electron and one of its neutrons ...)
daughter isotope (Product of radioactive decay of an unstable isotope. An unstable isotope decays into one or more ...)
accelerator mass spectrometry (Method of counting single radiocarbon atoms that is much more accurate than counting radioactive ...)
decay constant (Constant rate by which radioactive elements change spontaneously to lower energy states.)