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单词 rutherfordium
释义

rutherford /rudhˈər-fərd/

noun

A unit of radioactive disintegration, equal to a million disintegrations a second (abbrev rd)

ORIGIN: Baron Rutherford (1871–1937), New Zealand-born British physicist

rutherfordˈium noun

  1. An artificially produced radioactive transuranic element (symbol Rf; atomic no 104), formerly called unnilquadium, dubnium, and by the Russians kurchatovium
  2. A former name for seaborgium

seaborgium /sē-börˈgi-əm/

noun

An artificially produced radioactive transuranic element (symbol Sg; atomic no 106), formerly called unnilhexium and rutherfordium

ORIGIN: Glenn T Seaborg (1912–99), US physicist
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更新时间:2024/9/23 3:17:28