Uranium is a naturally occurring radioactive element, which has the atomic number of 92 and corresponds to the chemical symbol U in the periodic table. It belongs to a special group of elements called “actinides” — elements that were discovered relatively late in history. Like all other act...
According to the Jefferson National Linear Accelerator Laboratory, the properties of uranium are: Atomic number (number of protons in the nucleus): 92 Atomic symbol (on the Periodic Table of Elements): U Atomic weight (average mass of the atom): 238.02891 Density: 18.95 grams per cubic centimet...
ELEMENT 90 of the Periodic Table, thorium, ordinarily appears as the first element of the actinide series, appended below cerium at the bottom of Table 1. This construction gives the impression that thorium is the second member of a series starting with actinium in the scandium group, just as...
Uranium (pronounced /jʊˈreɪniəm/ yoo-RAY-nee-əm) is a silvery-white metallic chemical element in the actinide series of the periodic table with atomic number 92. It is assigned the chemical symbol U. A uranium atom has 92 protons and 92 electrons. 6 of the latter are val...
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Uranium is a chemical element; it has 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 radioactively decays by emitting an alpha particle. The...
uranium (U), radioactive chemical element of the actinoid series of the periodic table, atomic number 92. It is an important nuclear fuel. Uranium constitutes about two parts per million of Earth’s crust. Some important uranium minerals are pitchblende (impure U3O8), uraninite (UO2), carno...
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On the atomic-number similarity of the binding energies of electrons in filled shells of elements of the periodic table Article 01 March 2017 Iron Group: Elements of the Eighth Subgroup Chapter © 2024 A nuclear periodic table Article Open access 21 April 2020 References...
Uranium is a silvery-white metallic chemical element in the actinide series of the periodic table, with symbol U and atomic number 92 and it is weakly radioactive because all its isotopes are unstable. Many contemporary uses of uranium exploit its unique nuclear properties. In sufficient ...