Iron-60 (Fe-60)

Identity

Protons

26

Neutrons

34

Mass number

60

Mass

59.9 ± 3.7 u

Mass excess

-61.413 MeV

Spin

0+

Stability

Half-life: 2.62 × 10⁶ years

Natural occurrence

Not found in nature

Decays to

• beta minus → Co-60