Silver-109
Properties and data of the isotope 109Ag.
See also: list of Silver isotopes.
General data
Name of the isotope:Silver-109; Ag-109Symbol:109Ag or 10947AgMass number A:109 (= number of nucleons)Atomic number Z:47 (= number of protons)Neutrons N:62Isotopic mass:108.904755(9) u (atomic weight of Silver-109)Nuclide mass:108.8789731 u (calculated nuclear mass without electrons)Mass excess:-88.72015 MeVMass defect:1.000246296 u (per nucleus)Nuclear binding energy:931.72342325 MeV (per nucleus)
8.54792131 MeV (average binding energy per nucleon)Separation energy:SN = 9.1840(27) MeV (first neutron)
SP = 6.4842(14) MeV (first proton)Half-life:stableSpin and parity:
(nuclear angular momentum)1/2-Magnetic dipole moment:μ(μN) = 0.13051(5)Charge radius:4.5638(25) femtometer fmYear of discovery:1924
Parent Nuclides
Direct parent isotopes are: 109Cd, 109Pd.
Occurrence
Comparison of the natural Silver isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):
| | Atomic Mass ma | Quantity | Half-life | Spin |
|---|
Silver
Isotopic mixture | 107.8682 u | 100 % | | |
| Isotope 107Ag | 106.90509(2) u | 51.839(8) % | stable | 1/2- |
| Isotope 109Ag | 108.904755(9) u | 48.161(8) % | stable | 1/2- |
NMR data
Nuclear magnetic properties of the NMR active Nuclide 109Ag
Isotope:109Ag-NMRQuantity:48.161(8) %Spin:1/2-Nuclearmagnetic moment
μ/μN:0.13051(5)Gyromagnetic ratio γ:1.2519 · 107 rad T-1 s-1Nuclear g-factor:gl = 0.26102Resonance frequency:v0 = 1.9924 at 1 TRelative Sensitivity:0.00010 (H0 = const.)
0.0468 (v0 = const.)
[related to 1H = 1.000]
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 |
|---|
| 109mAg | 88.03337(10) keV | 39.79(21) s | 7/2+ |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 62) and isobaric (same nucleon number A = 109) with Silver-109. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 62 | Isobar A = 109 |
|---|
| 35 | 97Br | |
| 36 | 98Kr | |
| 37 | 99Rb | |
| 38 | 100Sr | |
| 39 | 101Y | 109Y |
| 40 | 102Zr | 109Zr |
| 41 | 103Nb | 109Nb |
| 42 | 104Mo | 109Mo |
| 43 | 105Tc | 109Tc |
| 44 | 106Ru | 109Ru |
| 45 | 107Rh | 109Rh |
| 46 | 108Pd | 109Pd |
| 47 | 109Ag | 109Ag |
| 48 | 110Cd | 109Cd |
| 49 | 111In | 109In |
| 50 | 112Sn | 109Sn |
| 51 | 113Sb | 109Sb |
| 52 | 114Te | 109Te |
| 53 | 115I | 109I |
| 54 | 116Xe | 109Xe |
| 55 | 117Cs | |
| 56 | 118Ba | |
| 57 | 119La | |
| 58 | 120Ce | |
| 59 | 121Pr | |
External data and identifiers
Last update: 2023-05-08
Perma link: https://www.chemlin.org/isotope/silver-109
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