neptunium series

neptunium series
noun
: a radioactive series that does not now occur in nature and that begins with plutonium of mass number 241 and continues to americium, to the longest-lived member of the series neptunium of mass number 237, and eventually to the stable end product bismuth

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neptunium series noun
A series formed by the decay of artificial radio-elements, the first member being plutonium-241 and the last bismuth-209, neptunium-237 being the longest-lived
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Main Entry:Neptune

Useful english dictionary. 2012.

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  • neptunium series — n. the radioactive series of nuclides starting with neptunium 237, with a half life of 2.2 x 106 years, and ending with stable bismuth 209: many radionuclides, as plutonium 241 and uranium 237, eventually decay into neptunium 237 and are often… …   Universalium

  • neptunium series — n. the radioactive series of nuclides starting with neptunium 237, with a half life of 2.2 x 106 years, and ending with stable bismuth 209: many radionuclides, as plutonium 241 and uranium 237, eventually decay into neptunium 237 and are often… …   English World dictionary

  • neptunium series — neptūnio radioaktyvioji šeima statusas T sritis chemija apibrėžtis Radioaktyviųjų skilimų seka nuo ²³⁷₉₃Np iki patvaraus ²⁰⁹₈₃Bi. atitikmenys: angl. neptunium family; neptunium radioactive family; neptunium radioactive series; neptunium series;… …   Chemijos terminų aiškinamasis žodynas

  • Neptunium — uranium ← neptunium → plutonium Pm ↑ Np ↓ (Uqt) …   Wikipedia

  • neptunium radioactive series — neptūnio radioaktyvioji šeima statusas T sritis chemija apibrėžtis Radioaktyviųjų skilimų seka nuo ²³⁷₉₃Np iki patvaraus ²⁰⁹₈₃Bi. atitikmenys: angl. neptunium family; neptunium radioactive family; neptunium radioactive series; neptunium series;… …   Chemijos terminų aiškinamasis žodynas

  • neptunium family — neptūnio radioaktyvioji šeima statusas T sritis chemija apibrėžtis Radioaktyviųjų skilimų seka nuo ²³⁷₉₃Np iki patvaraus ²⁰⁹₈₃Bi. atitikmenys: angl. neptunium family; neptunium radioactive family; neptunium radioactive series; neptunium series;… …   Chemijos terminų aiškinamasis žodynas

  • neptunium radioactive family — neptūnio radioaktyvioji šeima statusas T sritis chemija apibrėžtis Radioaktyviųjų skilimų seka nuo ²³⁷₉₃Np iki patvaraus ²⁰⁹₈₃Bi. atitikmenys: angl. neptunium family; neptunium radioactive family; neptunium radioactive series; neptunium series;… …   Chemijos terminų aiškinamasis žodynas

  • Neptunium(VI)-fluorid — Strukturformel Kristallsystem orthorhombisch Rau …   Deutsch Wikipedia

  • Isotopes of neptunium — Neptunium (Np) is an artificial element, and thus a standard atomic mass cannot be given. Like all artificial elements, it has no stable isotopes. The first isotope to be synthesized was 239Np in 1940, produced by bombarding 238U with neutrons to …   Wikipedia

  • neptunium — /nep tooh nee euhm, tyooh /, n. Chem., Physics. a transuranic element produced in nuclear reactors by the neutron bombardment of U 238: decays rapidly to plutonium and then to U 235. Symbol: Np; at. no.: 93. [1940 45; NEPTUNE + IUM] * * * ▪… …   Universalium

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