PALLADIUM-107

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Palladium-107 is a fission product with a halflife of 6.5 million years; among the 7 long-lived fission products, only iodine-129 has a longer halflife. It emits low-energy beta particles and its specific activity is 5 Ci/g. The decay product is silver-107.
Its yield is 0.1629% per fission; the yield of iodine-129 is four times as great, and the yields of Tc-99, Zr-93, and Cs-135 are each about 40 times as great. The other two LLFPs, Se-79 and Sn-126, have very low yields.
Fission palladium contains the isotopes ¹⁰⁴Pd (16.9%), ¹⁰⁵Pd (29.3%), ¹⁰⁶Pd (21.3%), ¹⁰⁷Pd (17%), ¹⁰⁸Pd (11.7%) and ¹¹⁰Pd (3.8%). [1] Because of this dilution and because ¹⁰⁵Pd has 11 times the neutron absorption cross section, ¹⁰⁷Pd is not amenable to disposal by nuclear transmutation. However, as a noble metal, palladium is not as mobile in the environment as iodine or technetium.

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See also

See also

★ Isotopes of palladium