Technetium-119
Properties and data of the isotope 119Tc.
See also: List of individual Technetium isotopes (and general data sources).
General data
Name of the isotope:Technetium-119; Tc-119Symbol:119Tc or 11943TcMass number A:119 (= number of nucleons)Atomic number Z:43 (= number of protons)Neutrons N:76Nucleon pairing (Z - N):odd - evenNuclear ratio (N/Z ratio):1.7674418604651 (= neutron-proton ratio)Neutron excess (N-Z):33Isotopic mass:118.95666(54) u (atomic weight of Technetium-119)Nuclide mass:118.9330722 u (calculated nuclear mass without electrons)Mass excess:-40.37095 MeVMass defect:1.038349992 u (per nucleus)Nuclear binding energy:967.21678745 MeV (per nucleus)
8.12787216 MeV (average binding energy per nucleon)Separation energy:SN = 4.65(64) MeV (first neutron)
SP = 15.03(71) MeV (first proton)Half-life:22(3) msDecay constant λ:31.506690025452 s-1Specific activity α:1.607946825115 × 10+23 Bq g-1
4345802230042.2 Ci g-1Spin and parity:
(nuclear angular momentum)Year of discovery:2010
Radioactive Decay
Half-life T½ = 22(3) ms respectively 2.2 × 10-2 seconds s.
Decay
mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| β- | 119Ru | | 12.19(58) MeV | |
| β-, n | 118Ru | | 8.82(54) MeV | |
| β-, 2n | 117Ru | | | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 76) and isobaric (same nucleon number A = 119) with Technetium-119. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 76 | Isobar A = 119 |
|---|
| 42 | 118Mo | |
| 43 | 119Tc | 119Tc |
| 44 | 120Ru | 119Ru |
| 45 | 121Rh | 119Rh |
| 46 | 122Pd | 119Pd |
| 47 | 123Ag | 119Ag |
| 48 | 124Cd | 119Cd |
| 49 | 125In | 119In |
| 50 | 126Sn | 119Sn |
| 51 | 127Sb | 119Sb |
| 52 | 128Te | 119Te |
| 53 | 129I | 119I |
| 54 | 130Xe | 119Xe |
| 55 | 131Cs | 119Cs |
| 56 | 132Ba | 119Ba |
| 57 | 133La | 119La |
| 58 | 134Ce | 119Ce |
| 59 | 135Pr | |
| 60 | 136Nd | |
| 61 | 137Pm | |
| 62 | 138Sm | |
| 63 | 139Eu | |
| 64 | 140Gd | |
| 65 | 141Tb | |
| 66 | 142Dy | |
| 67 | 143Ho | |
| 68 | 144Er | |
| 69 | 145Tm | |
External data and identifiers
Last update: 2020-10-15
Perma link: https://www.chemlin.org/isotope/technetium-119
© 1996 - 2026 ChemLin
