Manganese-47

Properties and data of the isotope ⁴⁷Mn.

Content

General data

Name of the isotope:Manganese-47; Mn-47Symbol:⁴⁷Mn or 4725MnMass number A:47 (= number of nucleons)Atomic number Z:25 (= number of protons)Neutrons N:22Isotopic mass:46.97577(3) u (atomic weight of Manganese-47)Nuclide mass:46.9620558 u (calculated nuclear mass without electrons)Mass excess:-22.5701 MeVMass defect:0.41048395200001 u (per nucleus)Nuclear binding energy:382.36333838 MeV (per nucleus)
8.13539018 MeV (average binding energy per nucleon)Separation energy:S_N = 18.07(40) MeV (first neutron)
S_P = 0.38(3) MeV (first proton)Half-life:100(50) msDecay constant λ:6.9314718055995 s^-1Specific activity α:9.074412952173 × 10⁺²² Bq g^-1
2452544041128.1 Ci g^-1Spin and parity:
(nuclear angular momentum)(5/2-)Mirror nucleus:Titanium-47Year of discovery:1987

Radioactive Decay

Half-life T_½ = 100(50) ms respectively 1.00 × 10^-1 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β⁺	⁴⁷Cr	96.6 %	12.00(30) MeV
β⁺, p	⁴⁶V	3.4(9) %

Parent Nuclides

Direct parent isotope is: ⁴⁷Fe.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 22) and isobaric (same nucleon number A = 47) with Manganese-47. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 22	Isobar A = 47
9	³¹F
10	³²Ne
11	³³Na
12	³⁴Mg
13	³⁵Al
14	³⁶Si
15	³⁷P
16	³⁸S	⁴⁷S
17	³⁹Cl	⁴⁷Cl
18	⁴⁰Ar	⁴⁷Ar
19	⁴¹K	⁴⁷K
20	⁴²Ca	⁴⁷Ca
21	⁴³Sc	⁴⁷Sc
22	⁴⁴Ti	⁴⁷Ti
23	⁴⁵V	⁴⁷V
24	⁴⁶Cr	⁴⁷Cr
25	⁴⁷Mn	⁴⁷Mn
26	⁴⁸Fe	⁴⁷Fe
27	⁴⁹Co	⁴⁷Co
28	⁵⁰Ni