Bk
Berkelium-249m
Protons (Z)
97
Neutrons (N)
152
Mass number
249
Half-Life
300.0 µs
Abundance
---
Mass
249.075 u
Mass Excess
69,855.1 keV
Spin
3/2-
Discovered
1960
Binding energy per nucleon
7,486 keV
Neutron separation energy
6,346 keV
Proton separation energy
4,827 keV
Decay Mode
- γ→Berkelium-249100%
Decay chain
- BkBerkelium-249Z 97 · N 152300.0 µs
- γ100%
- β⁻~100%
- α~100%
- α~100%
- β⁻~100%
- α~100%
- α~100%
- β⁻100%
- α~100%
- α100%
- β⁻100%
- α~100%
- α~100%
- α99.992%
- β⁻97.91%
- α100%
- β⁻100%
- α100%