Sr

Strontium-90

Protons (Z)

38

Neutrons (N)

52

Mass number

90

Half-Life

28.91 y

Abundance

---

Mass

89.908 u

Mass Excess

-85,950.9 keV

Spin

0+

Discovered

1948

Binding energy per nucleon

8,696 keV

Neutron separation energy

7,813 keV

Proton separation energy

11,528 keV

Decay Mode

β⁻Yttrium-90100%

Decay chain

Strontium-90Z 38 · N 5228.91 y
β⁻100%
β⁻100%