Uranium and thorium are both metals in the actinoid series of the periodic table. They are both silvery colored, both softer than steel, somewhat ductile, and not very good conductors of electricity....
Some thorium uses: - fertile material (as ThO2) in nuclear power reactors; is a precursor of the fissile isotope 233U. - thorium dioxide can be used as refractory material for crucibles, tubes, rods,...