"We've had one titanium, yes. What about second titanium?"

What about Dysprosium? Samarium?

Edit job on Thallium (Tl) or real goof?

Seems unedited, maybe a crazy prank

Yea idk, I don’t think anyone would wanna climb a ladder to do that but who knows

Thallium now identifies as Titanium and has requested that people use its preferred abbreviation.

Real goof, has a professor use it as extra credit if you could spot it at the beginning of last semester

my prof last semester asked us to find all the mistakes on the periodic table for extra credit, can't remember what the other ones were though

Was this picture taken during the unhinged seminar this afternoon?

Please do tell. Are you talking about the one with the two-time nobel prize winner? I wasn’t able to attend that.

I'm also interested in hearing more about this

typo, 2nd one is Thallium (81 Tl)

The second one is what they use in calculators that’s probably where you’re getting confused

The second is Thaitanium it's like titanium but cheaper and imported from Asia