Ra

Radium-207

Protons (Z)

88

Neutrons (N)

119

Mass number

207

Half-Life

1.38 s

Abundance

---

Mass

207.004 u

Mass Excess

3,510.0 keV

Spin

(5/2-)

Discovered

1967

Binding energy per nucleon

7,722 keV

Neutron separation energy

8,127 keV

Proton separation energy

2,532 keV

Decay Mode

Decay chain

Radium-207Z 88 · N 1191.38 s
α86%
α66%
β⁺92.5%
β⁺100%
β⁺100%
β⁺100%