Ra

Radium-210m

Protons (Z)

88

Neutrons (N)

122

Mass number

210

Half-Life

2.29 µs

Abundance

---

Mass

210.003 u

Mass Excess

2,494.0 keV

Spin

8+

Discovered

1998

Binding energy per nucleon

7,732 keV

Neutron separation energy

7,435 keV

Proton separation energy

1,013 keV

Decay Mode

γRadium-210100%

Decay chain

Radium-210Z 88 · N 1222.29 µs
γ100%
α100%
α62%
β⁺98.08%
β⁺~100%
EC100%
EC100%