Americium-243 (Am-243)
Identity
- Protons
- 95
- Neutrons
- 148
- Mass number
- 243
- Mass
- 243.1 ± 1.5 u
- Mass excess
- 57.175 MeV
- Spin
- 5/2-*
Stability
Half-life: 7350 years
Natural occurrence
Not found in nature
Decays to
- alpha 100.0 % Np-239
- spontaneous fission 3.7e-9 %