http://pashyrey.livejournal.com/ (
pashyrey.livejournal.com) wrote in
useless_faq2004-04-06 03:51 pm
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У кого есть таблика Менделеева под рукой?
Какие из химэлементов названы в честь стран и регионов?
Франций
Рутений
Полоний
Германий
Скандий
... ?
PS. Argentum не предлагать.
Франций
Рутений
Полоний
Германий
Скандий
... ?
PS. Argentum не предлагать.
no subject
no subject
http://www.webelements.com/webelements/elements/text/Db/key.html
http://www.chemicalelements.com/elements/db.html
http://chemlab.pc.maricopa.edu/periodic/db.html
и т.д.
no subject
dubnium
Synthesized, radioactive, metallic element of the transactinide series, symbol Db, atomic number 105, relative atomic mass 261. Six isotopes have been synthesized, each with very short (fractions of a second) half-lives. Two institutions claim to have been the first to produce it the Joint Institute for Nuclear Research in Dubna, Russia, in 1967 and the University of California at Berkeley, USA, who disputed the Soviet claim in 1970. Its temporary name was unnilpentium.
no subject
Сейчас название Дубний общепринято.