Rubidium-87 (Rb-87)
Identity
- Protons
- 37
- Neutrons
- 50
- Mass number
- 87
- Mass
- 86.9092 ± 0.0060 u
- Mass excess
- -84.598 MeV
- Spin
- 3/2-*
Stability
Half-life: 4.97 × 10¹⁰ years
Natural occurrence
27.83 % of rubidium
Decays to
- beta minus Sr-87
Half-life: 4.97 × 10¹⁰ years
27.83 % of rubidium