neptunium


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  • noun

Synonyms for neptunium

a radioactive transuranic metallic element

References in periodicals archive ?
Since the neptunium isotope that had been located emitted beta particles, it had to gain another unit in atomic number and produce element number 94, which was named plutonium, for the planet Pluto.
This contract is for the renovation of the pool Neptunium in Schaerbeek.
More recently, Law also has been developing techniques to extract valuable actinide elements from the fuel, such as neptunium, americium and curium.
The transuranium elements, Americium (Am), Neptunium (Np), Plutonium (Pu) and Curium (Cm), are the products of nuclear weapons tests and nuclear fuel cycle operations particularly from reprocessing plants [2].
Following the sequence of uranium and neptunium, Seaborg dubbed the new element "plutonium," after the planet Pluto.
For example the half life - a measure of the rate of natural decay of radioactive materials - of the waste product Plutonium 239 is 24,000 years, and that of Neptunium 237 is two million years.
For example the half life -- a measure of the rate of natural decay of radioactive materials -- of the waste product Plutonium 239 is 24,000 years, and that of Neptunium 237 is two million years.
Transfer of polonium, neptunium, plutonium and americium to the primate fetus.
They outline the important thermophysical properties of neptunium dioxide, the vapor pressure, and heat capacity; the results of a study on the vaporization behavior and phase relations in the plutonium oxide system; the vapor pressure of pure americium oxide samples; the variation of the total pressure of plutonium and americium bearing species over the solid solutions; and mass spectrometric investigations of candidate fuels and targets for transmutation of minor actinides.
MST exhibits excellent performance to remove dissolved strontium, plutonium, neptunium and uranium from highly alkaline salt solutions such as the high-level nuclear waste solutions stored at the Savannah River Site from fuel reprocessing operations.