Fr
Francium-198m
Protons (Z)
87
Neutrons (N)
111
Mass number
198
Half-Life
1.1 ms
Abundance
---
Mass
198.01 u
Mass Excess
9,580.0 keV
Spin
(10-)
Discovered
2013
Binding energy per nucleon
7,679 keV
Neutron separation energy
8,741 keV
Proton separation energy
-781 keV
Decay Mode
- α→Astatine-194100%
Decay chain
- FrFrancium-198Z 87 · N 1111.1 ms
- α100%
- α100%
- α77%
- β⁺
- β⁺~100%
- β⁺~100%
- β⁺~100%
- β⁺100%
- α100%