Berber,+Dylan

Uranium Chemical symbol: U. number of protons/electrons: 92. Number of neutrons: 146. Has 6 valence electrons. Uranium was discovered by a german chemist named Martin Klaproth in 1789. In 1938 uranium it was discovered to split to release energy, this was called fission. Uranium received its name from the planet uranus. There are 441 known nuclear power points known in the world that are active. Used to generate electric power, making isotopes, and to make weapons. Uranium is very heavy and lustorous,slightly lighter than steel. Uranium is coated with a layer of oxide when exposed to air. Is used in inertial guidance devices, gyro compasses, and missile reentry vehicles. Known as the Radioactive Rare Earth Element. Radium is found with Uranium ores since uranium is radioactive and is always decaying. Uraniums atomic number is 92. When in powderized state it can quickly ignite at room temperature, very dulluable and malluable. Electron Configuration is [Rn]7s25f36d1. Boiling Point is 4018. Melting Point is 1405.5. Atomic Weight is 238.0289. Costs over 1,000$ a pound. Density is 19.05. Number of energy levels:7. Obtained from many rocks,large amount of pitchblende and carnotite.

**Diagrahm of bohr model.** **silvery metal that reacts chemically and radiologically.**


 * Used ** **for explosives,missiles,can be used as biological weapons. Creates massive explosions.**[[image:lvscience/explosion.jpg width="147" height="152"]]

Found at: []- The new yorks time company, no author [] - author Yinon Bentor, update- 2009, [] Robert Sullivan, Environmental science divission, no updte