Nickel-66

Properties and data of the isotope ⁶⁶Ni.

Contents

General Data

Radioactive Decay

Parent Nuclides

Isotones und Isobares

See also: List of individual Nickel isotopes (and general data sources).

General data

Name of the isotope:Nickel-66; Ni-66Symbol:⁶⁶Ni or 6628NiMass number A:66 (= number of nucleons)Atomic number Z:28 (= number of protons)Neutrons N:38Nucleon pairing (Z - N):even - evenNuclear ratio (N/Z ratio):1.3571428571429 (= neutron-proton ratio)Neutron excess (N-Z):10Isotopic mass:65.9291393(15) u (atomic weight of Nickel-66)Nuclide mass:65.9137795 u (calculated nuclear mass without electrons)Mass excess:-66.00632 MeVMass defect:0.619228404 u (per nucleus)Nuclear binding energy:576.80754296 MeV (per nucleus)
8.73950823 MeV (average binding energy per nucleon)Separation energy:S_N = 8.9519(15) MeV (first neutron)
S_P = 14.1101(25) MeV (first proton)Half-life:54.6(3) hDecay constant λ:3.526389807488 × 10^-6 s^-1Specific activity α:3.267140945806 × 10⁺¹⁶ Bq g^-1
883011.06643414 Ci g^-1Spin and parity:
(nuclear angular momentum)0+Year of discovery:1948

Radioactive Decay

Half-life T_½ = 54.6(3) h (hours) respectively 1.96560 × 10⁵ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	⁶⁶Cu	100 %	0.2520(15) MeV

Parent Nuclides

Direct parent isotope is: ⁶⁶Co.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 38) and isobaric (same nucleon number A = 66) with Nickel-66. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 38	Isobar A = 66
19	⁵⁷K
20	⁵⁸Ca
21	⁵⁹Sc
22	⁶⁰Ti	⁶⁶Ti
23	⁶¹V	⁶⁶V
24	⁶²Cr	⁶⁶Cr
25	⁶³Mn	⁶⁶Mn
26	⁶⁴Fe	⁶⁶Fe
27	⁶⁵Co	⁶⁶Co
28	⁶⁶Ni	⁶⁶Ni
29	⁶⁷Cu	⁶⁶Cu
30	⁶⁸Zn	⁶⁶Zn
31	⁶⁹Ga	⁶⁶Ga
32	⁷⁰Ge	⁶⁶Ge
33	⁷¹As	⁶⁶As
34	⁷²Se	⁶⁶Se
35	⁷³Br	⁶⁶Br
36	⁷⁴Kr
37	⁷⁵Rb
38	⁷⁶Sr
39	⁷⁷Y
40	⁷⁸Zr