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

dubnium

/ˈdʌbnɪəm

noun [mass noun]

The chemical element of atomic number 105, a very unstable element made by high-energy atomic collisions. (Symbol: Db) See also hahnium, joliotium.Following up on berkelium, dubnium and californium, researchers at the University of Berkely in California, stumbled upon am element with atomic number 117 about a year ago....

For instance, after five alpha particles have been emitted we are left with element 105, which is called dubnium.
Similar controversies attended the much more recent synthesis and naming of the heaviest element of the group, dubnium.

Origin

1990s: modern Latin, from Dubna in Russia, site of the Joint Nuclear Institute.

单词	dubnium
释义	dubnium /ˈdʌbnɪəm / noun [mass noun] The chemical element of atomic number 105, a very unstable element made by high-energy atomic collisions. (Symbol: Db) See also hahnium, joliotium.Following up on berkelium, dubnium and californium, researchers at the University of Berkely in California, stumbled upon am element with atomic number 117 about a year ago.... For instance, after five alpha particles have been emitted we are left with element 105, which is called dubnium. Similar controversies attended the much more recent synthesis and naming of the heaviest element of the group, dubnium. Origin 1990s: modern Latin, from Dubna in Russia, site of the Joint Nuclear Institute.
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