Manganese-63

Properties and data of the isotope ⁶³Mn.

Content

General data

Name of the isotope:Manganese-63; Mn-63Symbol:⁶³Mn or 6325MnMass number A:63 (= number of nucleons)Atomic number Z:25 (= number of protons)Neutrons N:38Isotopic mass:62.949665(4) u (atomic weight of Manganese-63)Nuclide mass:62.9359508 u (calculated nuclear mass without electrons)Mass excess:-46.88675 MeVMass defect:0.575227608 u (per nucleus)Nuclear binding energy:535.82106549 MeV (per nucleus)
8.50509628 MeV (average binding energy per nucleon)Separation energy:S_N = 6.434(8) MeV (first neutron)
S_P = 13.28(15) MeV (first proton)Half-life:275(4) msDecay constant λ:2.5205352020362 s^-1Specific activity α:2.448228714369 × 10⁺²² Bq g^-1
661683436316.08 Ci g^-1Spin and parity:
(nuclear angular momentum)5/2-Magnetic dipole moment:μ(μ_N) = +3.439(3)Nuclear g-factor:g_l = 1.3756Year of discovery:1985

Radioactive Decay

Half-life T_½ = 275(4) ms respectively 2.75 × 10^-1 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	⁶³Fe	100 %	8.749(6) MeV
β^-, n	⁶²Fe	?	3.920(5) MeV

Parent Nuclides

Direct parent isotope is: ⁶³Cr.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 38) and isobaric (same nucleon number A = 63) with Manganese-63. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

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