Yes, all isotopes of 91Pa (231, 233 and 234) are radioactive, instable, not naturally occurring.
Protactinium is extremely toxic and radioactive; after a long time of contact, a skin irritation.
it is so radioactive, it is not used for anything
Yes, it's highly radioactive. That's why it's mostly used in nuclear weapons.
Protactinium is a metal.
Protactinium hasn't an odor.
Protactinium is a natural chemical element, metal, very radioactive.
Protactinium is a natural radioactive chemical element.
Being very radioactive protactinium is dangerous.
Because Protactinium is scarce and highly radioactive it is not available for the general public to buy.
Protactinium is a chemical element strongly radioactive and dangerous in any form.
Protactinium is extremely toxic and radioactive; after a long time of contact, a skin irritation.
it is so radioactive, it is not used for anything
Protactinium is a natrural chemical element, radioactive, unstable; protactinium is found in extremely low concentrations, in pitchblende - an uranium ore.
The meaning of protactinium is before actinium. The name is from 1949, probably selected by IUPAC.
Yes, it's highly radioactive. That's why it's mostly used in nuclear weapons.
I would not reccomend "feeling" protactinium due to its radioactivity and the fact that it is also chemically poisonous. It will feel like any other metal, but might be very slightly warm due to its radioactive decay.
Protactinium is not corrosive.