Fullerene Posted June 28, 2020 Share Posted June 28, 2020 (edited) Terbium Erbium Europium Samarium Praseodymium/Neodymium (Joint fifth) Edited June 29, 2020 by Fullerene 0 Quote Link to comment Share on other sites More sharing options...
RossBFaeDundee Posted June 28, 2020 Share Posted June 28, 2020 Prothemium = best -ium. 0 Quote Link to comment Share on other sites More sharing options...
Raidernation Posted June 29, 2020 Share Posted June 29, 2020 0 Quote Link to comment Share on other sites More sharing options...
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