Bismuth-219
Properties and data of the isotope 219Bi.
See also: list of Bismuth isotopes.
General data
Name of the isotope:Bismuth-219; Bi-219Symbol:219Bi or 21983BiMass number A:219 (= number of nucleons)Atomic number Z:83 (= number of protons)Neutrons N:136Isotopic mass:219.01748(21) u (atomic weight of Bismuth-219)Nuclide mass:218.9719531 u (calculated nuclear mass without electrons)Mass excess:16.28252 MeVMass defect:1.810426232 u (per nucleus)Nuclear binding energy:1686.40117255 MeV (per nucleus)
7.70046198 MeV (average binding energy per nucleon)Separation energy:SN = 5.0(2) MeV (first neutron)
SP = 6.46(36) MeV (first proton)Half-life:22(7) sDecay constant λ:0.031506690025452 s-1Specific activity α:8.663823075965 × 10+19 Bq g-1
2341573804.3149 Ci g-1Spin and parity:
(nuclear angular momentum)Year of discovery:2009
Radioactive Decay
Half-life T½ = 22(7) s respectively 2.2 × 101 seconds s.
Decay
mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| β- | 219Po | ? | 3.60(20) MeV | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 136) and isobaric (same nucleon number A = 219) with Bismuth-219. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 136 | Isobar A = 219 |
|---|
| 80 | 216Hg | |
| 81 | 217Tl | |
| 82 | 218Pb | 219Pb |
| 83 | 219Bi | 219Bi |
| 84 | 220Po | 219Po |
| 85 | 221At | 219At |
| 86 | 222Rn | 219Rn |
| 87 | 223Fr | 219Fr |
| 88 | 224Ra | 219Ra |
| 89 | 225Ac | 219Ac |
| 90 | 226Th | 219Th |
| 91 | 227Pa | 219Pa |
| 92 | 228U | 219U |
| 93 | 229Np | 219Np |
| 94 | 230Pu | |
| 95 | 231Am | |
| 96 | 232Cm | |
| 97 | 233Bk | |
External data and identifiers
Literature and References
[1] - H. Alvarez-Pol, J. Benlliure, E. Casarejos, L. Audouin et al.:
Production cross-sections of neutron-rich Pb and Bi isotopes in the fragmentation of 238U.
In: Experimental Physics, (2009), DOI 10.1140/epja/i2009-10856-8.
Last update: 2020-10-23
Perma link: https://www.chemlin.org/isotope/bismuth-219
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