I think the assumption with the chlorine is that you end up inhaling it and dying fairly quickly. Licking uranium isn’t a great idea, but you might not ever have noticable effects, even long term, if very little comes off onto your tongue. I know people who have accidently tasted plutonium in solution.
I think licking pure uranium is worse for your health than licking pure chlorine gas
I think the assumption with the chlorine is that you end up inhaling it and dying fairly quickly. Licking uranium isn’t a great idea, but you might not ever have noticable effects, even long term, if very little comes off onto your tongue. I know people who have accidently tasted plutonium in solution.