Surface energy calculation – metals with 1 and 2 delocalized electrons per atom Original Research Article

In this paper we calculate surface energy (SE) of monovalent, divalent and some trivalent metals. For these metals for which SE can be solely expressed by dimensionless Wigner–Seitz density parameter, rs, of delocalized electrons:SE=C1rs−5+C2rs−3.5−C3rs−4,where constants C1, C2 and C3 have been calculated on the basis of Sommerfeldʹs free electron and surface plasma models. Excellent agreement with experimental data was obtained. On the basis of our model SE values for Fr and Ra have been predicted as well.