Nb

Niobium-91m

Protons (Z)

41

Neutrons (N)

50

Mass number

91

Half-Life

60.86 d

Abundance

---

Mass

90.907 u

Mass Excess

-86,533.4 keV

Spin

1/2-

Discovered

1950

Binding energy per nucleon

8,670 keV

Neutron separation energy

11,943 keV

Proton separation energy

5,050 keV

Decay Mode

β⁺0.003%

Decay chain

Niobium-91Z 41 · N 5060.86 d
γ96.6%
EC~100%