Uranium

A newly discovered chemical element, Uranium was initially named after the planet Uranus. It later became famed for its nuclear properties and is now widely recognized for its use as a source of concentrated energy in nuclear reactors and weapons.
 Martin Heinrich Klaproth Germany 1789 Uranium

A newly discovered chemical element, Uranium was initially named after the planet Uranus. It later became famed for its nuclear properties and is now widely recognized for its use as a source of concentrated energy in nuclear reactors and weapons.