Rb

Rubidium-90

Protons (Z)

37

Neutrons (N)

53

Mass number

90

Half-Life

2.63 m

Abundance

---

Mass

89.915 u

Mass Excess

-79,366.0 keV

Spin

0-

Discovered

1951

Binding energy per nucleon

8,632 keV

Neutron separation energy

5,725 keV

Proton separation energy

10,119 keV

Decay Mode

β⁻Strontium-90100%

Decay chain

Rubidium-90Z 37 · N 532.63 m
β⁻100%
β⁻100%
β⁻100%