Europium-153 (Eu-153)

Identity

Protons

63

Neutrons

90

Mass number

153

Mass

152.9 ± 1.3 u

Mass excess

-73.367 MeV

Spin

5/2+*

Stability

stable

Natural occurrence

52.19 % of europium

Produced by

• Sm-153
• Gd-153