Uranium

Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all isotopes of uranium are unstable; the half-lives of its naturally occurring isotopes range between 159,200 years and 4.5 billion years. The most common isotopes in natural uranium are uranium-238 (which has 146 neutrons and accounts for over 99% of uranium on Earth) and uranium-235 (which has 143 neutrons). Uranium has the highest atomic …

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The National Archives · 1 January 1982 English

resource is iron ore. Fairly small deposits of uranium, gold, silver and antimony are also present.


The National Archives · 1 January 1982 English

barite and graphite. An important and high-grade uranium deposit has also been reported in the south-west


The National Archives · 1 January 1982 English

and zinc, and there may be some development of uranium resources. However, even if the pace of industrialisation


The National Archives · 1 January 1982 English

A file of correspondence and reports concerning the Soviet attitude towards the Falklands War. The documents cover discussions with Soviet officials on the crisis, outlining the British and Soviet positions; …

INCLUDING THE SUPPLY OF 100 KGS OF ENRICHED URANIUM FOR ARGENTINA'S RESEARCH REACTORS. 5. THE USSR


The National Archives · 1 January 1982 French

A file containing documents concerning the extension to West Berlin of international agreements by West Germany. Subjects covered in the file include a series of protests against such arrangements by …

ROUTINE BONN • ro > OUR TELEGRAM 288 ANGOLAi URANIUM 1. WEST GERMAN CHARGE HERE SAYS THAT HE HAS BEEN NASCIMENTO TO URGE F I N A L I SAT ION OF THE URANIUM CONTRACT» BUT THAT ALL REQUESTS FOR AUDIENCES NASCIMENTO'S OBSTRUCTIVE A T T l T U I > F T ( r T H E URANIUM CONTRACT MAY THEREFORE BE P O L I T I C A L


The National Archives · 1 January 1982 English

the signing of the contract for enrichment of uranium of British origin in the Soviet Union in 1980-1989


The National Archives · 1 January 1982 English

resources, apart from coal, mainly brown, and uranium which goes to the Soviet Union for processin


The National Archives · 1 January 1982 Russian

A file containing documents concerning Anglo-Soviet relations. Subjects covered in the file include inconsistency and confusion in Western policy towards the Soviet Union over several years; Soviet efforts to give …

INCLUDING THE SUPPLY OF 100 KGS OF ENRICHED URANIUM FOR ARGENTINA'S RESEARCH REACTORS. » 5. THE


The National Archives · 1 January 1982 English

A file containing documents concerning a visit to Bulgaria and Romania by the Foreign Office minister Malcolm Rifkind in September–October 1982. Subjects covered in the file include the original planning …

and zinc, and there may be some development of uranium resources. However, even if the pace of industrialisation and zinc, and there may be some development of uranium resources. However, even if the pace of industrialisation


The National Archives · 1 January 1982 English

jurisdictional issues, including the Westinghouse/ RTZ uranium case. Coincidentally and happily his firm has transferred


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