ELEMENT: Uranium

Uranium: a chemical element with 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 is weakly radioactive because all isotopes of uranium are unstable, with half-lives varying between 159,200 years and 4.5 billion years.
But what a bang it can make...