Isotopes of nickel

Isotopes of nickel (28Ni)
Main isotopes Decay
Isotope abun­dance half-life (t1/2) mode pro­duct
56Ni synth 6.075 d β+ 56Co
57Ni synth 35.60 h β+ 57Co
58Ni 68.1% stable
59Ni trace 8.1×104 y ε 59Co
60Ni 26.2% stable
61Ni 1.14% stable
62Ni 3.63% stable
63Ni synth 101 y β− 63Cu
64Ni 0.926% stable
Standard atomic weight Ar°(Ni)
  • 58.6934±0.0004
  • 58.693±0.001 (abridged)

Naturally occurring nickel (28Ni) consists of five stable isotopes; 58Ni, 60Ni, 61Ni, 62Ni and 64Ni; 58Ni is the most abundant at over 68%. 26 radioisotopes have been characterized; the most stable are 59Ni with a half-life of 81,000 years, 63Ni with a half-life of 101 years, and 56Ni at 6.075 days. All the other radioactive isotopes have half-lives of less than 60 hours and most of these have half-lives of less than 30 seconds. This element also has 11 known meta states.

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