英语词汇“neptunium”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

neptunium

/nɛpˈtjuːnɪəm

noun [mass noun]

The chemical element of atomic number 93, a radioactive metal of the actinide series. Neptunium was discovered as a product of the bombardment of uranium with neutrons, and occurs only in trace amounts in nature. (Symbol: Np) Each tank round is 10 pounds of solid uranium - 238 contaminated with plutonium, neptunium, americium....

In Basra they have found the bombs that were used had enriched uranium in them - neptunium.
Just as Neptune comes right after Uranus in the solar system, so, too, does neptunium come right after uranium in the periodic table.

Origin

Late 19th century: from Neptune, on the pattern of uranium (Neptune being the next planet beyond Uranus).

单词	neptunium
释义	neptunium /nɛpˈtjuːnɪəm / noun [mass noun] The chemical element of atomic number 93, a radioactive metal of the actinide series. Neptunium was discovered as a product of the bombardment of uranium with neutrons, and occurs only in trace amounts in nature. (Symbol: Np) Each tank round is 10 pounds of solid uranium - 238 contaminated with plutonium, neptunium, americium.... In Basra they have found the bombs that were used had enriched uranium in them - neptunium. Just as Neptune comes right after Uranus in the solar system, so, too, does neptunium come right after uranium in the periodic table. Origin Late 19th century: from Neptune, on the pattern of uranium (Neptune being the next planet beyond Uranus).
随便看	bioprocessing bioproduct bioprospecting bioprospector bioprosthesis bioprosthetic biopsy biopsychological biopsychology biopsychosocial biorational biordinal bioreactor biorefinery bioregion bioregional bioregionalism bioregionalist bioremediation bioreserve biorheology biorhythm biorhythmic biorhythmically biorhythmicist