. . "a bivalent and trivalent metallic element of the rare earth group"@en-us . "0"^^ . "Eu"@en-us . . "0.0751567"^^ . "113799376"@en-us . "europium"@en-us . "0.166794"^^ . . . "14637176-n"^^ . "0.150221"^^ . . "atomic number 63"@en-us . "0.138076"^^ . . . . . "0.224724"^^ . . "0.0574339"^^ . . . "110485926"@en-us . "europium"^^ . . "0.0686476"^^ . "0.118947"^^ . "114637176"^^ . . . "0"^^ . . . .