Y

Yttrium-84m

Protons (Z)

39

Neutrons (N)

45

Mass number

84

Half-Life

4.6 s

Abundance

---

Mass

83.921 u

Mass Excess

-73,827.0 keV

Spin

1+

Discovered

1976

Binding energy per nucleon

8,587 keV

Neutron separation energy

9,692 keV

Proton separation energy

4,318 keV

Decay Mode

β⁺Strontium-84100%

Decay chain

Yttrium-84Z 39 · N 454.6 s
β⁺100%