Fr
Francium-203n
Protons (Z)
87
Neutrons (N)
116
Mass number
203
Half-Life
370.0 ns
Abundance
---
Mass
203.001 u
Mass Excess
1,302.0 keV
Spin
13/2+
Discovered
2013
Binding energy per nucleon
7,730 keV
Neutron separation energy
9,871 keV
Proton separation energy
-288 keV
Decay Mode
- γ→Francium-203100%
Decay chain
- FrFrancium-203Z 87 · N 116370.0 ns
- γ100%
- α100%
- α89%
- β⁺~100%
- β⁺100%
- β⁺100%
- β⁺100%
- EC100%