Original: Protactinium is superconductive at temperatures below 1.4 K. Applications Due to its scarcity , high radioactivity , and high toxicity , there are currently no uses for protactinium outside of scientific research .
Simplified: It is superconductive at temperatures below 1.4 K. Applications Due to its scarcity , high radioactivity and toxicity , there are currently no uses for protactinium outside of basic research .