92 U 238.028913
Uranium
ACTINIDE
Phase: Solid
Discovered: Martin Heinrich Klaproth
Block: F
Summary
Uranium is a chemical element with symbol U and atomic number 92. It is a silvery-white metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons.
Source: WikipediaPhysical Properties
Atomic Mass 238.028913 u
Density 19.1 g/cm³
Melting Point 1405.3 K
Boiling Point 4404 K