Strontium-89 (Sr-89)

Identity

Protons

38

Neutrons

51

Mass number

89

Mass

88.907 ± 0.098 u

Mass excess

-86.209 MeV

Spin

5/2+*

Stability

Half-life: 50.6 days

Natural occurrence

Not found in nature

Decays to

• beta minus → Y-89