Plutonium's claim to fame: it was the

lutonium has also been used as a portable energy supply in space probes and other space vehicles.and many more like blood and the kidneys will be exposed to alpha particles. and many more different thing

this talk about what it was used for.

Explanation: Plutonium is used to make nuclear weapons. ... Plutonium has been used to make nuclear weapons (such as "atomic bombs") and in nuclear power plants to produce electricity. Plutonium has also been used as a portable energy supply in space probes and other space vehicles.