Fr

Francium-213

Protons (Z)

87

Neutrons (N)

126

Mass number

213

Half-Life

34.14 s

Abundance

---

Mass

212.996 u

Mass Excess

-3,554.0 keV

Spin

9/2-

Discovered

1964

Binding energy per nucleon

7,768 keV

Neutron separation energy

8,109 keV

Proton separation energy

2,184 keV

Decay Mode

Decay chain

Francium-213Z 87 · N 12634.14 s
α99.44%
β⁺96.1%
α99.546%
EC100%