Pb

Lead-189n

Protons (Z)

82

Neutrons (N)

107

Mass number

189

Half-Life

26.0 µs

Abundance

---

Mass

188.984 u

Mass Excess

-15,369.0 keV

Spin

31/2-

Discovered

2005

Binding energy per nucleon

7,813 keV

Neutron separation energy

5,629 keV

Proton separation energy

322 keV

Decay Mode

γLead-189100%

Decay chain

Lead-189Z 82 · N 10726.0 µs
γ100%
β⁺99.58%
β⁺100%
β⁺100%
β⁺~100%
β⁺100%
EC100%