Am
Americium-238
Protons (Z)
95
Neutrons (N)
143
Mass number
238
Half-Life
1.63 h
Abundance
---
Mass
238.052 u
Mass Excess
48,420.0 keV
Spin
1+
Discovered
1950
Binding energy per nucleon
7,556 keV
Neutron separation energy
6,221 keV
Proton separation energy
3,961 keV
Decay Mode
Decay chain
- AmAmericium-238Z 95 · N 1431.63 h
- β⁺~100%
- α~100%
- α~100%
- α~100%
- α~100%
- α100%
- α99.98%
- β⁻100%
- β⁻99.976%
- α100%
- β⁻~100%
- β⁻~100%
- α100%