Caesium-131 (Cs-131)
Identity
- Protons
- 55
- Neutrons
- 76
- Mass number
- 131
- Mass
- 130.91 ± 0.19 u
- Mass excess
- -88.056 MeV
- Spin
- 5/2+*
Stability
Half-life: 9.69 days
Natural occurrence
Not found in nature
Decays to
- electron capture Xe-131
Half-life: 9.69 days
Not found in nature