Se
Selenium-89
Protons (Z)
34
Neutrons (N)
55
Mass number
89
Half-Life
430.0 ms
Abundance
---
Mass
88.937 u
Mass Excess
-58,992.0 keV
Spin
(5/2+)
Discovered
1971
Binding energy per nucleon
8,435 keV
Neutron separation energy
3,179 keV
Proton separation energy
15,831 keV
Decay Mode
Decay chain
- SeSelenium-89Z 34 · N 55430.0 ms
- β⁻92.2%
- β⁻86.2%
- β⁻100%
- β⁻100%
- β⁻100%