Uranium
Chemical Element
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Iran: Uranium needed to power hospitals...site Ali Asghar Soltanieh, chief Iranian delegate to the International Atomic Energy Agency, said in an interview with Der Spiegel released Saturday that Iran desperately needed more uranium to produce isotopes for medical purposes. In this article: Uranium, Iran, UN, Der Spiegel, International Atomic Energy Agency, Teheran, and Turkey |
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NPR | 3 days ago
Iran Rejects U.N. Proposal To Export Uranium
Iran Rejects U.N. Proposal To Export Uranium Iran's foreign minister on Wednesday said his country would not export its enriched uranium for further processing, effectively rejecting the latest U.N. plan aimed at preventing Tehran from...
In this article: Iran, United Nations, Hillary Clinton, Tehran, U.S., Russia, and France
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AP Online | 3 days ago
Iran FM rejects sending away uranium
Iran FM rejects sending away uranium TEHRAN, Iran (AP) - Iran's foreign minister has ruled out sending enriched uranium out of the country, rejecting the U.N.'s plan to resolve the crisis. The U.N. offered a deal last month to Iran to take...
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washingtonpost.com | 3 days ago
Iran rejects sending uranium abroad
Iran rejects sending uranium abroad TEHRAN (Reuters) - Iran ruled out on Wednesday sending enriched uranium abroad for further processing, but would consider swapping it for nuclear fuel provided it remained under supervision inside the...
In this article: Iran, Tehran, International Atomic Energy Agency, Manouchehr Mottaki, France, United States, U.N., Russia, and Mohamed ElBaradei
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Detroit News | 3 days ago
Iran refuses U.N. plan to process uranium
Iran refuses U.N. plan to process uranium Tehran, Iran -- Iran will not ship its low-enriched uranium out of the country for processing, its foreign minister said Wednesday, once again rejecting a U.N. plan aimed at thwarting any attempt by...
In this article: Iran, United Nations, Tehran, International Atomic Energy Agency, State Department, Kwame Kilpatrick, and Barack Obama
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6 world powers press Iran on nuclear issue
...is replace distrust by a degree of trust." In Washington, State Department spokesman Robert Wood said the U.S. has not given up hope that Iran will accept and implement the uranium exchange. "We continue to call on Iran to accept this...
In this article: Iran, Mohamed ElBaradei, Tehran, International Atomic Energy Agency, U.N., Robert Wood, Geneva, and Berlin
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Yahoo! News | 5 days ago
UN nuclear watchdog wants more answers from Iran (AFP)
...can also make the fissile core of an atomic bomb. Iran has been enriching uranium for several years at a plant in the central city of Natanz, in defiance of three sets of UN sanctions. In its first official report since IAEA experts...
In this article: Iran, International Atomic Energy Agency, UN, Tehran, Qom, Natanz, and Barack Obama
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Description from Wikipedia:
Uranium (pronounced: /jʊˈreɪniəm/) is a silvery-gray metallic chemical element in the actinide series of the periodic table that has the symbol U and atomic number 92. It has 92 protons and 92 electrons, 6 of them valence electrons. It can have between 141 and 146 neutrons, with 146 (U-238) and 143 in its most common isotopes. Uranium has the highest atomic weight of the naturally occurring elements. Uranium is approximately 70% more dense than lead, but not as dense as gold or tungsten. It is weakly radioactive. It occurs naturally in low concentrations (a few parts per million) in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite (see uranium mining).
In nature, uranium atoms exist as uranium-238 (99.284%), uranium-235 (0.711%), and a very small amount of uranium-234 (0.0058%). Uranium decays slowly by emitting an alpha particle. The half-life of uranium-238 is about 4.47 billion years and that of uranium-235 is 704 million years, making them useful in dating the age of the Earth (see uranium-thorium dating, uranium-lead dating and uranium-uranium dating).
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