Manganese-70
Properties and data of the isotope 70Mn.
See also: list of Manganese isotopes.
General data
Name of the isotope:Manganese-70; Mn-70Symbol:70Mn or 7025MnMass number A:70 (= number of nucleons)Atomic number Z:25 (= number of protons)Neutrons N:45Isotopic mass:69.97907(54) u (atomic weight of Manganese-70)Nuclide mass:69.9653558 u (calculated nuclear mass without electrons)Mass excess:-19.49617 MeVMass defect:0.60647702000001 u (per nucleus)Nuclear binding energy:564.92970527 MeV (per nucleus)
8.07042436 MeV (average binding energy per nucleon)Separation energy:SN = 2.80(64) MeV (first neutron)
SP = 18.21(71) MeV (first proton)Half-life:19.9(17) msDecay constant λ:34.831516611053 s-1Specific activity α:3.040004339086 × 10+23 Bq g-1
8216227943477.6 Ci g-1Spin and parity:
(nuclear angular momentum)Year of discovery:2009
Radioactive Decay
Half-life T½ = 19.9(17) ms respectively 1.99 × 10-2 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
β- | 70Fe | | 17.01(64) MeV | |
β-, n | 69Fe | 50(20) % | 11.46(64) MeV | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 45) and isobaric (same nucleon number A = 70) with Manganese-70. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
OZ | Isotone N = 45 | Isobar A = 70 |
25 | 70Mn | 70Mn |
26 | 71Fe | 70Fe |
27 | 72Co | 70Co |
28 | 73Ni | 70Ni |
29 | 74Cu | 70Cu |
30 | 75Zn | 70Zn |
31 | 76Ga | 70Ga |
32 | 77Ge | 70Ge |
33 | 78As | 70As |
34 | 79Se | 70Se |
35 | 80Br | 70Br |
36 | 81Kr | 70Kr |
37 | 82Rb | |
38 | 83Sr | |
39 | 84Y | |
40 | 85Zr | |
41 | 86Nb | |
42 | 87Mo | |
43 | 88Tc | |
44 | 89Ru | |
45 | 90Rh | |
46 | 91Pd | |
47 | 92Ag | |
External data and identifiers
Last update: 2020-10-13
Perma link: https://www.chemlin.org/isotope/manganese-70
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