Iron-59 (Fe-59)

Identity

Protons

26

Neutrons

33

Mass number

59

Mass

58.93 ± 0.35 u

Mass excess

-60.665 MeV

Spin

3/2-*

Stability

Half-life: 44.5 days

Natural occurrence

Not found in nature

Decays to

• beta minus → Co-59