I don’t think my old (ca. 1990) placemat featuring the Periodic Table had anything named past Fermium, plus a smaller set of Ununs. Lots of new ones in the quest for the Island of Stability.
Border complete! Thanks Rebekah :o).
Coincidentally I also got a Periodic Table-themed gift from my mom. (Blocks for me… and Theo.)
Maybe that random invitation to join the American Chemical Society wasn’t so far off base?