Promethium forms only one stable oxidation state, + 3, in the form of ions; this is in line with other lanthanides.
32.
In 1963, ion-exchange methods were used at ORNL to prepare about ten grams of promethium from nuclear reactor fuel processing wastes.
33.
Promethium-based paint was used to illuminate Apollo Lunar Module electrical switch tips and painted on control panels of the Lunar Roving Vehicle.
34.
These operatives are led by Promethium II, a woman known as a Millennial Queen who goes by the Earth name, Yukino Yayoi.
35.
All elements up to and including nobelium, except technetium and promethium, are known to have at least one beta-stable isotope.
36.
Promethium is also used to measure the thickness of materials by evaluating the amount of radiation from a promethium source that passes through the sample.
37.
Promethium is also used to measure the thickness of materials by evaluating the amount of radiation from a promethium source that passes through the sample.
38.
His first mission involved stealing the element Promethium from S . T . A . R . Labs and selling it as the ultimate weapon.
39.
Marinsky and Glendenin produced this element ( later named " promethium " ) both by extraction from fission products and by bombarding neodymium with neutrons.
40.
The primary decay products before 142 Nd are element Pr ( praseodymium ) isotopes and the primary products after are element Pm ( promethium ) isotopes.
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