Molybdenum-111
Properties and data of the isotope 111Mo.
See also: List of individual Molybdenum isotopes (and general data sources).
General data
Name of the isotope:Molybdenum-111; Mo-111Symbol:111Mo or 11142MoMass number A:111 (= number of nucleons)Atomic number Z:42 (= number of protons)Neutrons N:69Nucleon pairing (Z - N):even - oddNuclear ratio (N/Z ratio):1.6428571428571 (= neutron-proton ratio)Neutron excess (N-Z):27Isotopic mass:110.935652(14) u (atomic weight of Molybdenum-111)Nuclide mass:110.9126127 u (calculated nuclear mass without electrons)Mass excess:-59.93978 MeVMass defect:0.99087854800001 u (per nucleus)Nuclear binding energy:922.99742219 MeV (per nucleus)
8.31529209 MeV (average binding energy per nucleon)Separation energy:SN = 3.468(27) MeV (first neutron)
SP = 14.92(84) MeV (first proton)Half-life:186(9) msDecay constant λ:3.7265977449459 s-1Specific activity α:2.040190595307 × 10+22 Bq g-1
551402863596.73 Ci g-1Spin and parity:
(nuclear angular momentum)(1/2+.3/2+)Year of discovery:1994
Radioactive Decay
Half-life T½ = 186(9) ms respectively 1.86 × 10-1 seconds s.
Decay
mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| β- | 111Tc | >88 % | 9.085(7) MeV | |
| β-, n | 110Tc | < 12 % | 3.023(15) MeV | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 69) and isobaric (same nucleon number A = 111) with Molybdenum-111. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 69 | Isobar A = 111 |
|---|
| 38 | 107Sr | |
| 39 | 108Y | |
| 40 | 109Zr | 111Zr |
| 41 | 110Nb | 111Nb |
| 42 | 111Mo | 111Mo |
| 43 | 112Tc | 111Tc |
| 44 | 113Ru | 111Ru |
| 45 | 114Rh | 111Rh |
| 46 | 115Pd | 111Pd |
| 47 | 116Ag | 111Ag |
| 48 | 117Cd | 111Cd |
| 49 | 118In | 111In |
| 50 | 119Sn | 111Sn |
| 51 | 120Sb | 111Sb |
| 52 | 121Te | 111Te |
| 53 | 122I | 111I |
| 54 | 123Xe | 111Xe |
| 55 | 124Cs | |
| 56 | 125Ba | |
| 57 | 126La | |
| 58 | 127Ce | |
| 59 | 128Pr | |
| 60 | 129Nd | |
| 61 | 130Pm | |
| 62 | 131Sm | |
| 63 | 132Eu | |
External data and identifiers
Last update: 2020-10-15
Perma link: https://www.chemlin.org/isotope/molybdenum-111
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