Tag: periodic table

  • Puzzle Complete

    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.

  • Birthday Puzzle

    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?