Europium-151 (Eu-151)
Identity
- Protons
- 63
- Neutrons
- 88
- Mass number
- 151
- Mass
- 150.9 ± 1.3 u
- Mass excess
- -74.653 MeV
- Spin
- 5/2+*
Stability
Half-life: 4.60 × 10¹⁸ years
Natural occurrence
47.81 % of europium
Decays to
- alpha Pm-147
Half-life: 4.60 × 10¹⁸ years
47.81 % of europium