Fr
Francium-201
Protons (Z)
87
Neutrons (N)
114
Mass number
201
Half-Life
62.8 ms
Abundance
---
Mass
201.004 u
Mass Excess
3,589.0 keV
Spin
9/2-
Discovered
1980
Binding energy per nucleon
7,715 keV
Neutron separation energy
10,612 keV
Proton separation energy
-300 keV
Decay Mode
Decay chain
- FrFrancium-201Z 87 · N 11462.8 ms
- α100%
- α96.1%
- β⁺96.5%
- β⁺
- β⁺100%
- β⁺100%
- β⁺100%
- EC100%