Manganese-60
Properties and data of the isotope 60Mn.
See also: list of Manganese isotopes.
General data
Name of the isotope:Manganese-60; Mn-60Symbol:60Mn or 6025MnMass number A:60 (= number of nucleons)Atomic number Z:25 (= number of protons)Neutrons N:35Isotopic mass:59.9431366(25) u (atomic weight of Manganese-60)Nuclide mass:59.9294224 u (calculated nuclear mass without electrons)Mass excess:-52.96792 MeVMass defect:0.55576126 u (per nucleus)Nuclear binding energy:517.68827912 MeV (per nucleus)
8.62813799 MeV (average binding energy per nucleon)Separation energy:SN = 5.514(3) MeV (first neutron)
SP = 12.17(22) MeV (first proton)Half-life:0.28(2) sDecay constant λ:2.4755256448569 s-1Specific activity α:2.526773582324 × 10+22 Bq g-1
682911779006.62 Ci g-1Spin and parity:
(nuclear angular momentum)1+Magnetic dipole moment:μ(μN) = +2.488(7)Nuclear g-factor:gl = 2.488Year of discovery:1978
Radioactive Decay
Half-life T½ = 0.28(2) s respectively 2.8 × 10-1 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
β- | 60Fe | 100 % | 8.445(4) MeV | |
Parent Nuclides
Direct parent isotope is: 60Cr.
Nuclear Isomers
Nuclear isomers or excited states with the activation energy in keV related to the ground state.
Nuclear Isomer | Excitation Energy | Half-life | Spin |
---|
60mMn | 271.8(1) keV | 1.77(2) s | 4+ |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 35) and isobaric (same nucleon number A = 60) with Manganese-60. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
OZ | Isotone N = 35 | Isobar A = 60 |
18 | 53Ar | |
19 | 54K | |
20 | 55Ca | |
21 | 56Sc | 60Sc |
22 | 57Ti | 60Ti |
23 | 58V | 60V |
24 | 59Cr | 60Cr |
25 | 60Mn | 60Mn |
26 | 61Fe | 60Fe |
27 | 62Co | 60Co |
28 | 63Ni | 60Ni |
29 | 64Cu | 60Cu |
30 | 65Zn | 60Zn |
31 | 66Ga | 60Ga |
32 | 67Ge | 60Ge |
33 | 68As | |
34 | 69Se | |
35 | 70Br | |
36 | 71Kr | |
37 | 72Rb | |
38 | 73Sr | |
External data and identifiers
Last update: 2020-10-13
Perma link: https://www.chemlin.org/isotope/manganese-60
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