Silver-111m
Properties and data of the isotope 111Ag.
See also: list of Silver isotopes.
General data
Name of the isotope:Silver-111m; Ag-111mSymbol:111Ag or 11147AgMass number A:111 (= number of nucleons)Atomic number Z:47 (= number of protons)Neutrons N:64Isotopic mass:110.9052968(16) u (atomic weight of Silver-111m)
Excitation energy: 59.82(4) keVNuclide mass:110.8795149 u (calculated nuclear mass without electrons)Mass excess:-88.21546 MeVMass defect:1.017034328 u (per nucleus)Nuclear binding energy:947.36137433 MeV (per nucleus)
8.53478716 MeV (average binding energy per nucleon)Half-life:64.8(8) sDecay constant λ:0.010696715749382 s-1Specific activity α:5.856102634680 × 10+19 Bq g-1
1582730441.8054 Ci g-1Spin and parity:
(nuclear angular momentum)7/2+
Radioactive Decay
Half-life T½ = 64.8(8) s respectively 6.48 × 101 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
β- | 111Cd | 0.7(2) % | | |
Iso | 111Ag | 99.3(2) % | | |
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 |
---|
111Ag | | 7.45(1) d | 1/2- |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 64) and isobaric (same nucleon number A = 111) with Silver-111m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
OZ | Isotone N = 64 | Isobar A = 111 |
36 | 100Kr | |
37 | 101Rb | |
38 | 102Sr | |
39 | 103Y | |
40 | 104Zr | 111Zr |
41 | 105Nb | 111Nb |
42 | 106Mo | 111Mo |
43 | 107Tc | 111Tc |
44 | 108Ru | 111Ru |
45 | 109Rh | 111Rh |
46 | 110Pd | 111Pd |
47 | 111Ag | 111Ag |
48 | 112Cd | 111Cd |
49 | 113In | 111In |
50 | 114Sn | 111Sn |
51 | 115Sb | 111Sb |
52 | 116Te | 111Te |
53 | 117I | 111I |
54 | 118Xe | 111Xe |
55 | 119Cs | |
56 | 120Ba | |
57 | 121La | |
58 | 122Ce | |
59 | 123Pr | |
60 | 124Nd | |
Last update: 2020-10-16
Perma link: https://www.chemlin.org/isotope/silver-111m
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