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单词
dubnium
释义
dubnium
/dubˈni-əm/
noun
An artificially produced radioactive transuranic element (symbol
Db
; atomic no 105), formerly called
unnilpentium
,
joliotium
and
hahnium
A former name for rutherfordium (see under rutherford)
ORIGIN:
First produced in
Dubna
, Russia
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更新时间:2025/3/13 12:43:38