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technetium

n. 锝

□

WordNet (r) 3.0 (2006) (WordNet)

technetium
n 1: a crystalline metallic element not found in nature; occurs
as one of the fission products of uranium [synonym:
{technetium}, {Tc}, {atomic number 43}]

The Elements Database (element)

technetium
Symbol: Tc
Atomic number: 43
Atomic weight: (98)
Radioactive metallic transition element. Can be detected in some stars
and
the fission products of uranium. First made by Perrier and Segre by
bombarding molybdenum with deutrons, giving them Tc-97. Tc-99 is the
most
stable isotope with a half-life of 2.6*10^6 years. Sixteen isotopes are
known. Organic technetium compounds are used in bone imaging. Chemical
properties are intermediate between rhenium and manganese.

English-Italian (Internet Dictionary Project)

tecnezio[Noun]

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technetium	查看　technetium　在Google字典中的解释	Google英翻中〔查看〕
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