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neptunium

[ UK /nɛptjˈuːni‍əm/ ]
[ US /nɛpˈtuniəm/ ]
NOUN
  1. a radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium

How To Use neptunium In A Sentence

  • In Basra they have found the bombs that were used had enriched uranium in them - neptunium.
  • All isotopes of neptunium are radioactive, the longest lived being neptunium - 237 with a half life of 2,140,000 years.
  • Just as Neptune comes right after Uranus in the solar system, so, too, does neptunium come right after uranium in the periodic table.
  • The new elements were named neptunium and plutonium, respectively.
  • When struck by neutrons, nuclei of neptunium and other nuclear materials can fission into two smaller nuclei.
  • They had to be named after the next two planets, and so were called neptunium and plutonium - both found at Berkeley using the new cyclotron.
  • The Berkeley cyclotron created many elements never found in nature - including plutonium, which directly follows neptunium in the periodic table.
  • The Berkeley cyclotron created many elements never found in nature - including plutonium, which directly follows neptunium in the table.
  • As beta decay does not change the atomic mass, the isotope of the new element number 93, neptunium, also has mass 239.
  • Each tank round is 10 pounds of solid uranium - 238 contaminated with plutonium, neptunium, americium.
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