Se

Selenium-68

Protons (Z)

34

Neutrons (N)

34

Mass number

68

Half-Life

35.5 s

Abundance

---

Mass

67.942 u

Mass Excess

-54,189.4 keV

Spin

0+

Discovered

1990

Binding energy per nucleon

8,477 keV

Neutron separation energy

15,681 keV

Proton separation energy

4,891 keV

Decay Mode

β⁺Arsenic-68100%

Decay chain

Selenium-68Z 34 · N 3435.5 s
β⁺100%
β⁺100%
EC100%
β⁺100%