Osmium-193
Properties and data of the isotope 193Os.
See also: List of individual Osmium isotopes (and general data sources).
General data
Name of the isotope:Osmium-193; Os-193Symbol:193Os or 19376OsMass number A:193 (= number of nucleons)Atomic number Z:76 (= number of protons)Neutrons N:117Nucleon pairing (Z - N):even - oddNuclear ratio (N/Z ratio):1.5394736842105 (= neutron-proton ratio)Neutron excess (N-Z):41Isotopic mass:192.9641498(25) u (atomic weight of Osmium-193)Nuclide mass:192.922462 u (calculated nuclear mass without electrons)Mass excess:-33.39425 MeVMass defect:1.644347804 u (per nucleus)Nuclear binding energy:1531.70011334 MeV (per nucleus)
7.93627002 MeV (average binding energy per nucleon)Separation energy:SN = 5.58342(20) MeV (first neutron)
SP = 9.09(7) MeV (first proton)Half-life:29.830(18) hDecay constant λ:6.454605547732 × 10-6 s-1Specific activity α:2.0245074897 × 10+16 Bq g-1
547164.18642703 Ci g-1Spin and parity:
(nuclear angular momentum)3/2-Magnetic dipole moment:μ(μN) = + 0.7297(16)Quadrupole moment Q:+ 0.47(6) barn (100 fm2)Nuclear g-factor:gl = 0.48646666666667Year of discovery:1940
Radioactive Decay
Half-life T½ = 29.830(18) h (hours) respectively 1.07388 × 105 seconds s.
Decay
mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| β- | 193Ir | 100 % | 1.1419(24) MeV | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 117) and isobaric (same nucleon number A = 193) with Osmium-193. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 117 | Isobar A = 193 |
|---|
| 71 | 188Lu | |
| 72 | 189Hf | |
| 73 | 190Ta | 193Ta |
| 74 | 191W | 193W |
| 75 | 192Re | 193Re |
| 76 | 193Os | 193Os |
| 77 | 194Ir | 193Ir |
| 78 | 195Pt | 193Pt |
| 79 | 196Au | 193Au |
| 80 | 197Hg | 193Hg |
| 81 | 198Tl | 193Tl |
| 82 | 199Pb | 193Pb |
| 83 | 200Bi | 193Bi |
| 84 | 201Po | 193Po |
| 85 | 202At | 193At |
| 86 | 203Rn | 193Rn |
| 87 | 204Fr | |
| 88 | 205Ra | |
| 89 | 206Ac | |
| 90 | 207Th | |
External data and identifiers
Last update: 2020-10-21
Perma link: https://www.chemlin.org/isotope/osmium-193
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