The recent what touhou would be/do what was strange (in a good way) but this is the strangest of all...
...BTW there are 118 elements on the Periodic table up to this day and there are 112 Touhou characters up till this day, 109 if you consider Reimu, Marisa and Yuka the same characters as the PC-98 versions of them.
So with about one more "full" touhou game and one more fighter touhou, there will be more Touhous then elements in the Periodic table.
(If you're only counting naturally occurring elements, we have far more touhous then natural elements.)
Anyways, back to topic...
Reimu: H or some kind of noblegas
Yukari:
Antimatter, AetherMedicine: Cr+6
Kanako:O
Suwako: Fe
If only it was "compound" I would've said Luciferin for Wriggle and Methanol for Mystia
