У кого есть таблика Менделеева под рукой?
Apr. 6th, 2004 03:51 pm![[identity profile]](https://www.dreamwidth.org/img/silk/identity/openid.png){kind=small}
pashyrey.livejournal.com posting in ![[community profile]](https://www.dreamwidth.org/img/silk/identity/community.png){kind=small}
useless_faqКакие 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
Date: 2004-04-09 12:29 am (UTC)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
Date: 2004-04-09 12:54 am (UTC)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
Date: 2004-04-09 12:59 am (UTC)Сейчас название Дубний общепринято.