Nickel-56 is a radioisotope of the chemical element Nickel, which, in addition to the element-specific 28 protons, has 28 neutrons in the atomic nucleus, resulting in the mass number 56. The very short-lived, unstable and therefore radioactive nuclide, which can only be produced artificially, has no practical significance from a technical point of view; The study of 56Ni is exclusively for academic purposes.
Nickel-56 is produced in large quantities in stellar explosions: The isotope can be detected indirectly in the light emitted by a supernova (of a certain type) using the spectra of the radioactive decay products (see below).
The nuclide has a double magic atomic nucleus with 28 neutrons and protons.
See also: list of Nickel isotopes.
Half-life T½ = 6.075(10) d respectively 5.24880 × 105 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|---|---|---|---|
EC/β+ | 56Co | 100 % | 2.1329(6) MeV |
Direct parent isotopes are: 56Cu, 57Zn, 60Ga.
Z | Isotone N = 28 | Isobar A = 56 |
---|---|---|
11 | 39Na | |
12 | 40Mg | |
13 | 41Al | |
14 | 42Si | |
15 | 43P | |
16 | 44S | |
17 | 45Cl | |
18 | 46Ar | |
19 | 47K | 56K |
20 | 48Ca | 56Ca |
21 | 49Sc | 56Sc |
22 | 50Ti | 56Ti |
23 | 51V | 56V |
24 | 52Cr | 56Cr |
25 | 53Mn | 56Mn |
26 | 54Fe | 56Fe |
27 | 55Co | 56Co |
28 | 56Ni | 56Ni |
29 | 57Cu | 56Cu |
30 | 58Zn | 56Zn |
31 | 59Ga | |
32 | 60Ge |
[1] - Mirko Schmid:
Nuclear matter distribution of 56Ni measured with EXL.
In: Dissertation, TU Darmstadt, (2015).
[2] - Zsófia Bora et al.:
Initial Ni-56 Masses in Type Ia Supernovae.
In: Publications of the Astronomical Society of the Pacific, (2022), DOI 10.1088/1538-3873/ac63e7.
[3] - Felix Sommer et al.:
Charge Radii of 55,56Ni Reveal a Surprisingly Similar Behavior at N=28 in Ca and Ni Isotopes.
In: Physical Review Letters, 129, 132501, (2022), DOI 10.1103/PhysRevLett.129.132501.
[4] - M. von Schmid, T. Aumann, S. Bagchi et al.:
Matter radius of the doubly-magic 56Ni measured in a storage ring.
In: The European Physical Journal A, 59, 83, (2023), DOI 10.1140/epja/s10050-023-00967-z.
Last update: 2023-10-26
Perma link: https://www.chemlin.org/isotope/nickel-56
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