Fr
Francium-200
Protons (Z)
87
Neutrons (N)
113
Mass number
200
Half-Life
47.5 ms
Abundance
---
Mass
200.007 u
Mass Excess
6,130.0 keV
Spin
(3+)
Discovered
1995
Binding energy per nucleon
7,700 keV
Neutron separation energy
8,712 keV
Proton separation energy
-401 keV
Decay Mode
- β⁺SF
Decay chain
- FrFrancium-200Z 87 · N 11347.5 ms
- α100%
- α97.5%
- β⁺88%
- β⁺~100%
- β⁺100%
- EC100%
- β⁺100%