Be
Beryllium-11
Protons (Z)
4
Neutrons (N)
7
Mass number
11
Half-Life
13.76 s
Abundance
---
Mass
11.022 u
Mass Excess
20,177.17 keV
Spin
1/2+
Discovered
1958
Binding energy per nucleon
5,953 keV
Neutron separation energy
502 keV
Proton separation energy
20,165 keV
Decay Mode
- β⁻p0.001%
Decay chain
- BeBeryllium-11Z 4 · N 713.76 s
- β⁻96.699%