KnowraPer Teodor CleveLinked fromLinked fromThe 3 pages that link to Per Teodor Cleve, each with the reason it gives.All 3Related 3Carl Gustaf MosanderRelated: Cleve extended the Swedish program of rare-earth separation after Mosander.HolmiumRelated: Cleve recognized holmium in fractions separated from erbia.ThuliumRelated: Cleve identified thulium in 1879 while examining erbia fractions.