Manganese-62

Properties and data of the isotope ⁶²Mn.

Content

General data

Name of the isotope:Manganese-62; Mn-62Symbol:⁶²Mn or 6225MnMass number A:62 (= number of nucleons)Atomic number Z:25 (= number of protons)Neutrons N:37Isotopic mass:61.947907(7) u (atomic weight of Manganese-62)Nuclide mass:61.9341928 u (calculated nuclear mass without electrons)Mass excess:-48.52432 MeVMass defect:0.568320692 u (per nucleus)Nuclear binding energy:529.38731467 MeV (per nucleus)
8.53850508 MeV (average binding energy per nucleon)Separation energy:S_N = 4.853(7) MeV (first neutron)
S_P = 13.34(10) MeV (first proton)Half-life:92(13) msDecay constant λ:7.5342084843472 s^-1Specific activity α:7.438043403421 × 10⁺²² Bq g^-1
2010282000924.6 Ci g^-1Spin and parity:
(nuclear angular momentum)(1+)Magnetic dipole moment:μ(μ_N) = +2.384(7)Nuclear g-factor:g_l = 2.384Year of discovery:1983

Radioactive Decay

Half-life T_½ = 92(13) ms respectively 9.2 × 10^-2 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	⁶²Fe	100 %	10.354(7) MeV
β^-, n	⁶¹Fe	?	2.325(7) MeV

Parent Nuclides

Direct parent isotope is: ⁶²Cr.

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
^62mMn	+ Y	671(5) ms	(4+)

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 37) and isobaric (same nucleon number A = 62) with Manganese-62. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 37	Isobar A = 62
19	⁵⁶K
20	⁵⁷Ca
21	⁵⁸Sc
22	⁵⁹Ti	⁶²Ti
23	⁶⁰V	⁶²V
24	⁶¹Cr	⁶²Cr
25	⁶²Mn	⁶²Mn
26	⁶³Fe	⁶²Fe
27	⁶⁴Co	⁶²Co
28	⁶⁵Ni	⁶²Ni
29	⁶⁶Cu	⁶²Cu
30	⁶⁷Zn	⁶²Zn
31	⁶⁸Ga	⁶²Ga
32	⁶⁹Ge	⁶²Ge
33	⁷⁰As	⁶²As
34	⁷¹Se
35	⁷²Br
36	⁷³Kr
37	⁷⁴Rb
38	⁷⁵Sr
39	⁷⁶Y
40	⁷⁷Zr