Bk
Berkelium-240
Protons (Z)
97
Neutrons (N)
143
Mass number
240
Half-Life
4.8 m
Abundance
---
Mass
240.06 u
Mass Excess
55,660.0 keV
Spin
(7-)
Discovered
1980
Binding energy per nucleon
7,523 keV
Neutron separation energy
6,661 keV
Proton separation energy
2,779 keV
Decay Mode
- β⁺SF0.002%
Decay chain
- BkBerkelium-240Z 97 · N 1434.8 m
- β⁺
- α~100%
- α~100%
- α~100%
- α~100%
- α~100%
- α100%
- α100%
- β⁻100%
- β⁻64.046%
- α100%