Sanadkii 1901, Eugene Antole Demarcay wuxuu ka helay walxo cusub "samarium" wuxuuna u magacaabay Europium. Tani waxay u badan tahay in loogu magac daray ereyga Yurub. Inta badan oxide europium waxaa loo isticmaalaa budada fluorescent. Eu3+ waxa loo istcimaalaa hawl wadeen ahaan fosfoorrada cas, Eu2+na waxaa loo isticmaalaa fosfoorrada buluugga ah. Hadda,...
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