Decay Series

Some articles on decay series, decay, decays, series:

Uranium-uranium Dating
... techniques exploiting the uranium radioactive decay series, in which 238U undergoes 14 alpha and beta decay events while decaying to the stable isotope 206Pb ... Other dating techniques using this decay series include uranium-thorium (using 230Th/238U) and uranium-lead dating. 238U, with a half-life of about 4.5 billion years, decays to 234U through emission of an alpha particle to an isotope of thorium (234Th), which is ...
K–Ar Dating - Decay Series
... The radioactive isotope 40K decays with a half-life of 1.248×109 years to 40Ca and 40Ar ... Conversion to stable 40Ca occurs via electron emission (beta decay) in 89.1% of decay events ... Conversion to stable 40Ar occurs via positron emission (inverse beta decay, electron capture) in the remaining 10.9% of decay events ...
Uranium Compounds - Isotopes - Natural Concentrations
... undergoes spontaneous fission), decaying through the "Uranium Series" of nuclear decay, which has 18 members, all of which eventually decay into lead-206, by a variety of different decay paths ... The decay series of 235U, which is called the actinium series has 15 members, all of which eventually decay into lead-207 ... The constant rates of decay in these decay series makes the comparison of the ratios of parent to daughter elements useful in radiometric dating ...
Age Of The Earth - Radiometric Dating - Invention of Radiometric Dating
... In radioactive decay, an element breaks down into another, lighter element, releasing alpha, beta, or gamma radiation in the process ... They also determined that a particular isotope of a radioactive element decays into another element at a distinctive rate ... of time it takes half of a mass of that radioactive material to break down into its "decay product" ...

Famous quotes containing the words series and/or decay:

    There is in every either-or a certain naivete which may well befit the evaluator, but ill- becomes the thinker, for whom opposites dissolve in series of transitions.
    Robert Musil (1880–1942)

    But I must needs take my petulance, contrasting it with my accustomed morning hopefulness, as a sign of the ageing of appetite, of a decay in the very capacity of enjoyment. We need some imaginative stimulus, some not impossible ideal which may shape vague hope, and transform it into effective desire, to carry us year after year, without disgust, through the routine- work which is so large a part of life.
    Walter Pater (1839–1894)