ETIMOLOGIA DA PALAVRA FRANCIUM
From New Latin, from France + -ium; so-called because first found in France.
O QUE SIGNIFICA FRANCIUM EM INGLÊS
Francium
Francium é um elemento químico com o símbolo Fr e o número atômico 87. Anteriormente era conhecido como eka-cesium e actinium K. É um dos dois elementos menos eletronegativos, sendo o outro césio. Francium é um metal altamente radioativo que decai em astatine, radium e radon. Como metal alcalino, possui um elétron de valência. Bulk francium nunca foi visualizado. Devido à aparência geral dos outros elementos em sua coluna de tabela periódica, presume-se que o francium apareceria como um metal altamente reflexivo, se puderem ser coletados para ser vistos como um sólido sólido ou líquido. Contudo, a preparação dessa amostra é impossível, uma vez que o calor extremo da decadência vaporizará imediatamente qualquer quantidade visível do elemento. Francium foi descoberto por Marguerite Perey na França em 1939. Foi o último elemento descoberto pela primeira vez na natureza, e não pela síntese. Do lado de fora do laboratório, o francium é extremamente raro, com vestígios encontrados em minérios de urânio e tório, onde o isotopo francium-223 se forma e decaia continuamente.
definição de francium no dicionário inglês
A definição de francium no dicionário é um elemento radioativo instável do grupo de metal alcalino, ocorrendo em quantidades mínimas em minérios de urânio. Símbolo: Fr; número atômico: 87; semi-vida do isótopo mais estável, 223Fr: 22 minutos; valência: 1; ponto de fusão: 27 ° C; Pb de ebulição: 677 ° C.
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10 LIVROS EM INGLÊS RELACIONADOS COM «FRANCIUM»
Descubra o uso de
francium na seguinte seleção bibliográfica. Livros relacionados com
francium e pequenos extratos deles para contextualizar o seu uso na literatura.
1
The Alkali Metals: Lithium, Sodium, Potassium, Rubidium, ...
Explains the characteristics of alkali metals, where they are found, how they are used by humans, and their relationship to other elements found in the periodic table.
2
Studies of Atomic Properties of
Francium and Rubidium
We use this new experimental setup as well as a rubidium glass cell to perform precision studies of atomic and nuclear properties of rubidium.
Adrian Perez Galvan,
2009
3
Cooling and Trapping of Rubidium and
Francium Ions in a ...
Nuclear g-factor measurements are planned with polarized and trapped Francium isotopes. Such measurements would be an important step in preparation of a parity non-conservation experiment.
4
Collinear Laser Spectroscopy of
Francium and Rubidium with ...
Fewer precision measurements have been performed concerning francium's
nuclear structure, in particular the nuclear magnetic moments of francium
isotopes. This thesis describes our development towards trapping polarized
francium ions ...
Jerry Frederick Sell,
2007
5
Advanced Inorganic Chemistry Vol-1
Francium is retained in pure form in the filtrate. The separation of francium can be
achieved by extraction with a benzene solution of thenoyltrifluoroacetone (TTA),
which forms benzene-soluble complexes with actinium and all its decay ...
6
Nature's Building Blocks: An A-Z Guide to the Elements
ECONOMIC ELEMENT Francium is an intensely radioactive metal, of which there
are minute traces in uranium ores, but that required for research purposes is
made either in a nuclear reactor (by bombarding radium with neutrons) or in a ...
7
Isotopes of
Francium:
Francium-199,
Francium-200, ...
Pages: 148. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge. Excerpt: Francium (Fr) has no stable isotopes.
Books Group Staff, Books, LLC, Books Group,
2010
8
Low Mass
Francium and Emanation Isotopes of High Alpha Stability
Isotopes of francium with 126 or fewer neutrons have been looked for in bombardments of Th232 with 350 Mev protons from the 184-inch cyclotron.
Earl K. Hyde, Albert Ghiorso, Glenn Theodore Seaborg,
1949
9
Francium: Isotopes of
Francium
Chapters: Isotopes of Francium. Source: Wikipedia. Pages: 21. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge.
10
Standard Potentials in Aqueous Solution
Because of the similarity and simplicity of the chemistry , the various
thermodynamic properties will be discussed for the group as a whole, with the
exception of francium. The ionization energy, particularly the first ionization
energy, of the ...
Allen J. Bard, Roger Parsons, Joseph Jordan,
1985
10 NOTÍCIAS NAS QUAIS SE INCLUI O TERMO «FRANCIUM»
Conheça de que se fala nos meios de comunicação nacionais e internacionais e como se utiliza o termo
francium no contexto das seguintes notícias.
A Bethesda family's New Year's resolution: Eat at every restaurant …
But “192” is less stable than a francium isotope (which is ironic, because Bethesda's French restaurants are among the longest lasting). «Washington Post, mar 15»
Trivia Bits: Keep an eye on the injured list
3. A. Australia is pretty flat. 4. B. Rastafarians think that King Solomon's son founded the Ethiopian royal family. 5. A. Gallium and francium are ... «San Jose Mercury News, mar 15»
Weekly news quiz: Greece's new leader, a smoggy city and …
Francium. Beijing Smog 5. The mayor of one of China's largest cities this week said it was 'not a liveable city' because of its noxious smog. «The Guardian, jan 15»
Corrections: December 21, 2014
7 about the discovery of the element francium described incorrectly an incident involving Marie Curie and her assistant Elizabeth Rona. «New York Times, dez 14»
Reply All: The 12.7.14 Issue
FRANCIUM KILLED MY GREAT-GREAT AUNT. The incidences of radiation-related disease in the Curie laboratory were especially tragic, ... «New York Times, dez 14»
The Day Computer Games Got Sexy
This week we have a sexy foray into the first erotic computer game and the story of a scientist whose discovery of the rare element francium ... «Gizmodo, dez 14»
My Great-Great-Aunt Discovered Francium. And It Killed Her.
Like her mentor, she had discovered an element, which she named francium, in honor of her country. But the story of Marguerite Perey — which ... «New York Times, dez 14»
Yingli Green Energy Holding's (YGE) CEO Miao Liansheng on Q3 …
... team will continue to invest in lead generation for distributed generation market, as well as marketing the francium and personalization within ... «Seeking Alpha, nov 14»
Pendleton dedicates new veterans memorial
Sarah Francium Rose of Anderson touches the U.S. Army seal on a newly dedicated Veterans Memorial at Veterans Park in Pendleton. «Anderson Independent Mail, nov 14»
'Masters of Sex' Recap: Bill Gets His Way, and Virginia Pays the Price
Virginia consults a divorce lawyer, Herb Spleeb (Jack Laufer), who delivers a great line: “New wives are like Francium, the most unstable of ... «New York Times, set 14»