Properties | More Info | Isotopes | Spectra
Compounds | Reactions | Production
Atomic: M.A.C. | Reference
Shell Structure diagram | Atomic Radius diagram
As "Protactinium" is known around the world...
Croat Protaktinij
Czech Protaktinium
Dutch Protactinium
English Protactinium
French Protactinium
German Protactinium
Italian protoattinio
Latin Protactinium
Norwegian Protactinium
Portugese Protacnidio
Spanish protactinio
Swedish Protaktinium