Silver-115
Properties and data of the isotope 115Ag.
See also: List of individual Silver isotopes (and general data sources).
General data
Name of the isotope:Silver-115; Ag-115Symbol:115Ag or 11547AgMass number A:115 (= number of nucleons)Atomic number Z:47 (= number of protons)Neutrons N:68Nucleon pairing (Z - N):odd - evenNuclear ratio (N/Z ratio):1.4468085106383 (= neutron-proton ratio)Neutron excess (N-Z):21Isotopic mass:114.908767(20) u (atomic weight of Silver-115)Nuclide mass:114.8829851 u (calculated nuclear mass without electrons)Mass excess:-84.98299 MeVMass defect:1.048223792 u (per nucleus)Nuclear binding energy:976.41417291 MeV (per nucleus)
8.49055803 MeV (average binding energy per nucleon)Separation energy:SN = 8.123(19) MeV (first neutron)
SP = 8.781(20) MeV (first proton)Half-life:20.0(5) minDecay constant λ:0.00057762265046662 s-1Specific activity α:3.051337688596 × 10+18 Bq g-1
82468586.178284 Ci g-1Spin and parity:
(nuclear angular momentum)1/2-Year of discovery:1949
Radioactive Decay
Half-life T½ = 20.0(5) min (minutes) respectively 1.200 × 103 seconds s.
Decay
mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| β- | 115Cd | 100 % | 3.102(18) MeV | |
Parent Nuclides
Direct parent isotopes are: 115Pd, 252Cf.
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 |
|---|
| 115mAg | 41.16(10) keV | 18.0(7) s | 7/2+ |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 68) and isobaric (same nucleon number A = 115) with Silver-115. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 68 | Isobar A = 115 |
|---|
| 38 | 106Sr | |
| 39 | 107Y | |
| 40 | 108Zr | |
| 41 | 109Nb | 115Nb |
| 42 | 110Mo | 115Mo |
| 43 | 111Tc | 115Tc |
| 44 | 112Ru | 115Ru |
| 45 | 113Rh | 115Rh |
| 46 | 114Pd | 115Pd |
| 47 | 115Ag | 115Ag |
| 48 | 116Cd | 115Cd |
| 49 | 117In | 115In |
| 50 | 118Sn | 115Sn |
| 51 | 119Sb | 115Sb |
| 52 | 120Te | 115Te |
| 53 | 121I | 115I |
| 54 | 122Xe | 115Xe |
| 55 | 123Cs | 115Cs |
| 56 | 124Ba | 115Ba |
| 57 | 125La | |
| 58 | 126Ce | |
| 59 | 127Pr | |
| 60 | 128Nd | |
| 61 | 129Pm | |
| 62 | 130Sm | |
| 63 | 131Eu | |
External data and identifiers
Last update: 2020-10-16
Perma link: https://www.chemlin.org/isotope/silver-115
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