Thorium is a naturally occurring
radioactive chemical element, found in abundance throughout the
world. It was discovered in 1828 and named after Thor, the
Norse god of thunder.
Things you might not know about
Thorium:
- Thorium, as well as uranium and plutonium,
can be used as fuel in a nuclear reactor.
- It is three times more abundant than tin in
the Earth's crust and is about as common as lead.
- Powdered thorium metal is pyrophoric and will
often ignite spontaneously in air.
See GC2XAY2 -
Hydrogen, for an explanation about this series of
caches.