Se

Selenium-69m

Protons (Z)

34

Neutrons (N)

35

Mass number

69

Half-Life

2.0 µs

Abundance

---

Mass

68.939 u

Mass Excess

-56,395.9 keV

Spin

5/2-

Discovered

1988

Binding energy per nucleon

8,503 keV

Neutron separation energy

10,278 keV

Proton separation energy

4,790 keV

Decay Mode

γSelenium-69100%

Decay chain

Selenium-69Z 34 · N 352.0 µs
γ100%
β⁺99.948%
β⁺100%
β⁺100%