Pershina, V.; Borschevsky, A.; Anton, J. (20. februar 2012). »Fully relativistic study of intermetallic dimers of group-1 elements K through element 119 and prediction of their adsorption on noble metal surfaces«. Chemical Physics. Elsevier. 395: 87–94. Bibcode:2012CP....395...87P. doi:10.1016/j.chemphys.2011.04.017. This article gives the Mulliken electronegativity as 2.862, which has been converted to the Pauling scale via χP = 1,35χM1/2 − 1,37.
Pershina, V.; Borschevsky, A.; Anton, J. (20. februar 2012). »Fully relativistic study of intermetallic dimers of group-1 elements K through element 119 and prediction of their adsorption on noble metal surfaces«. Chemical Physics. Elsevier. 395: 87–94. Bibcode:2012CP....395...87P. doi:10.1016/j.chemphys.2011.04.017. This article gives the Mulliken electronegativity as 2.862, which has been converted to the Pauling scale via χP = 1,35χM1/2 − 1,37.