Ra

Radium-202

Protons (Z)

88

Neutrons (N)

114

Mass number

202

Half-Life

4.1 ms

Abundance

---

Mass

202.01 u

Mass Excess

9,075.0 keV

Spin

0+

Discovered

2005

Binding energy per nucleon

7,686 keV

Neutron separation energy

10,933 keV

Proton separation energy

1,803 keV

Decay Mode

αRadon-198100%

Decay chain

Radium-202Z 88 · N 1144.1 ms
α100%
α93%
α100%
β⁺99.6%
β⁺100%
β⁺100%
β⁺~100%
α100%
α100%