Molybdenum-117
Properties and data of the isotope 117Mo.
See also: List of individual Molybdenum isotopes (and general data sources).
General data
Name of the isotope:Molybdenum-117; Mo-117Symbol:117Mo or 11742MoMass number A:117 (= number of nucleons)Atomic number Z:42 (= number of protons)Neutrons N:75Nucleon pairing (Z - N):even - oddNuclear ratio (N/Z ratio):1.7857142857143 (= neutron-proton ratio)Neutron excess (N-Z):33Isotopic mass:116.96117(54) u (atomic weight of Molybdenum-117)Nuclide mass:116.9381307 u (calculated nuclear mass without electrons)Mass excess:-36.16991 MeVMass defect:1.017350044 u (per nucleus)Nuclear binding energy:947.65546189 MeV (per nucleus)
8.09961933 MeV (average binding energy per nucleon)Separation energy:SN = 2.74(71) MeV (first neutron)Half-life:22(5) msDecay constant λ:31.506690025452 s-1Specific activity α:1.635670046238 × 10+23 Bq g-1
4420729854697.8 Ci g-1Spin and parity:
(nuclear angular momentum)Year of discovery:2010
Radioactive Decay
Half-life T½ = 22(5) ms respectively 2.2 × 10-2 seconds s.
Decay
mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| β- | 117Tc | ? | 12.21(64) MeV | |
| β-, n | 116Tc | ? | 7.21(58) MeV | |
| β-, 2n | 115Tc | ? | | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 75) and isobaric (same nucleon number A = 117) with Molybdenum-117. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 75 | Isobar A = 117 |
|---|
| 42 | 117Mo | 117Mo |
| 43 | 118Tc | 117Tc |
| 44 | 119Ru | 117Ru |
| 45 | 120Rh | 117Rh |
| 46 | 121Pd | 117Pd |
| 47 | 122Ag | 117Ag |
| 48 | 123Cd | 117Cd |
| 49 | 124In | 117In |
| 50 | 125Sn | 117Sn |
| 51 | 126Sb | 117Sb |
| 52 | 127Te | 117Te |
| 53 | 128I | 117I |
| 54 | 129Xe | 117Xe |
| 55 | 130Cs | 117Cs |
| 56 | 131Ba | 117Ba |
| 57 | 132La | 117La |
| 58 | 133Ce | |
| 59 | 134Pr | |
| 60 | 135Nd | |
| 61 | 136Pm | |
| 62 | 137Sm | |
| 63 | 138Eu | |
| 64 | 139Gd | |
| 65 | 140Tb | |
| 66 | 141Dy | |
| 67 | 142Ho | |
| 68 | 143Er | |
| 69 | 144Tm | |
External data and identifiers
Last update: 2020-10-15
Perma link: https://www.chemlin.org/isotope/molybdenum-117
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