Europium (Eu)

Europium (Eu)


Atomic Number: 63

Atomic Weight: 151.964

Melting Point: 1095 K (822°C or 1512°F)

Boiling Point: 1802 K (1529°C or 2784°F)

Density: 5.24 grams per cubic centimeter

Phase at Room Temperature: Solid

Element Classification: Metal

Period Number: 6

Group Number: none

Group Name: Lanthanide

Europium has two stable isotopes and both are used for the production of radioisotopes. Eu-151 is used for the production of Eu-152 which is used as a reference source in gammaspectroscopy. Eu-153 can be used for the production of high specific activity Sm-153 via fast neutron irradiation.

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