Uranium - Wikipedia
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 radioactively decays, usually by …
Uranium | Definition, Properties, Uses, & Facts | Britannica
Oct 3, 2024 · Uranium, radioactive chemical element of the actinoid series of the periodic table, atomic number 92. It is an important nuclear fuel. It is a dense, hard metallic element that is silvery white in color. It is ductile, malleable, and capable of taking a high polish.
Uranium - Element information, properties and uses | Periodic …
Element Uranium (U), Group 20, Atomic Number 92, f-block, Mass 238.029. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
What is Uranium? | IAEA - International Atomic Energy Agency
Aug 16, 2023 · 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 …
Nuclear Fuel Facts: Uranium - Department of Energy
Nov 15, 2016 · Uranium is a silvery-white metallic chemical element in the periodic table, with atomic number 92. It is assigned the chemical symbol U. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium has the highest atomic weight of all naturally occurring elements.
Uranium: Facts about the radioactive element that powers nuclear ...
Mar 9, 2022 · To understand uranium, it's important to understand radioactivity. Uranium is naturally radioactive: Its nucleus is unstable, so the element is in a constant state of decay, seeking a more stable...
Uranium Element Facts and Properties - ThoughtCo
Jul 3, 2019 · Uranium is a heavy, lustrous, silvery-white metal, capable of taking a high polish. It exhibits three crystallographic modifications: alpha, beta, and gamma. It is a bit softer than steel; not hard enough to scratch glass. It is malleable, ductile, and slightly paramagnetic.
Uranium | History, Uses, Facts, Physical & Chemical Characteristics
Uranium is a weakly radioactive element discovered in 1789 by Martin Heinrich Klaproth. It is widely used to fuel nuclear power plants and to make high density penetrators. Atomic bomb is also made using Uranium.
Quick Facts About the Element Uranium - ThoughtCo
May 12, 2018 · 11 Uranium Facts. Pure uranium is a silvery-white metal. The atomic number of uranium is 92, meaning uranium atoms have 92 protons and usually 92 electrons. The isotope of uranium depends on how many neutrons it has. Because uranium is radioactive and always decaying, radium is always found with uranium ores. Uranium is slightly paramagnetic.
Uranium Facts – Atomic Number 92 Element Symbol U
Oct 4, 2020 · Uranium is a radioactive element with atomic number 92 and element symbol U. This gray metal is used in ammunition, armor, nuclear weapons, and nuclear power plants. Here is a collection of interesting uranium facts, including the …