dubniumとは 意味・読み方・使い方

語源

From Dubna +‎ -ium, named after Dubna, Moscow Oblast, Russia, the site of the Joint Institute for Nuclear Research, which discovered the element.

発音

• (英国発音) enPR: dŭb'nēəm, IPA: /ˈdʌbniəm/
• (米国発音) enPR: do͞ob'nēəm, IPA: /ˈduːbniəm/ (米国発音) enPR: dŭb'nēəm, IPA: /ˈdʌbniəm/

名詞

dubnium (uncountable)

1. A transuranic chemical element (symbol Db) with atomic number 105.
2. (chemistry, obsolete) A rejected name for rutherfordium.

同意語

• eka-tantalum (used before the element was discovered)
• hahnium (proposed by American scientists, but rejected; still used by some Western scientists; see also hassium)
• joliotium (proposed by the IUPAC, but rejected)
• nielsbohrium (proposed by Russian scientists, but rejected)
• unnilpentium (used before the element had been officially named to avoid disputes between Western and Russian scientists over "hahnium" and "dubnium" respectively)

関連する語

• Dubna
• dubnate

発音

• (Classical Latin) IPA: [ˈdʊb.ni.ũː]
• (modern Italianate Ecclesiastical) IPA: [ˈd̪ub.ni.um]

名詞

dubnium n (genitive dubniī); second declension

1. dubnium

語形変化

Second-declension noun (neuter).