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Eu, Europium

Wikipedia (It is a moderately hard, silvery metal which readily oxidizes in air and water. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3, but the oxidation state +2 is also common: all europium compounds with oxidation state +2 are slightly reducing. Europium has no significant biological role and is relatively non-toxic compared to other heavy metals. Most applications of europium exploit the phosphorescence of europium compounds)
It is paramagnetic(?) at room temperature. Susceptibility = +30.900E-3 emu/mol from this table


EuFeO3

EuFeO3; EuFeO3; Europium ferrate (EuFeO3); Europium ferrate(III) (EuFeO3); Europium ferrite (EuFeO3); Europium iron oxide (EuFeO3); Europium orthoferrite; Europium orthoferrite (EuFeO3)
Antiferomagnetic with Neel temperature approximately 662 K.
from http://library.lanl.gov/cgi-bin/getfile?00937171.pdf.