²⁰⁵Tl-Thallium

 
205Tl has 81 protons and 124 neutrons.
205Tl is a stable isotope.
The mass excess of 205Tl is -23820.802 with an uncertainty of ±1.239.


The mass was measured using a Penning Trap and Nuclear Physics and the related equations include:

Influence				 Equations

        60.3%	   	          205Tl(d,t)204Tl 1 
             14.6%	   	            205Tl35Cl-203Tl37Cl 2 
              12.3%	   	      205Tl(3He, d)206Pb 1 
            	 








Reference

1. H. Lindner, H. Trieb, T. von Egidy, H. Hiller, J. Klora, U. Mayerhofer, A. Walter, A.H. Wapstra (1990) The Q-value of the electron capture in 205Pb measured with transfer reactions
 Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  297(1-2)
https://www.sciencedirect.com/science/article/abs/pii/016890029091369M

2. W. McLatchie, R.C. Barber, R.L. Bishop, H.E. Duckworth, B.G. Hogg, J.D. Macdougall, P.Van Rookhuyzen (1964) Some new neutron separation energies for isotopes of Hg, Tl, Pb, and Bi
 Canadian Journal of Physics  42(5)
https://cdnsciencepub.com/doi/abs/10.1139/p64-086