Ra

Radium-213

Protons (Z)

88

Neutrons (N)

125

Mass number

213

Half-Life

2.73 m

Abundance

---

Mass

213.0 u

Mass Excess

346.0 keV

Spin

1/2-

Discovered

1955

Binding energy per nucleon

7,746 keV

Neutron separation energy

7,526 keV

Proton separation energy

3,427 keV

Decay Mode

Decay chain

Radium-213Z 88 · N 1252.73 m
α87%
β⁺83%
β⁺96.1%
α99.546%
EC100%