A multi-configuration Dirac-Fock method is used to calculate the energ
ies of the n = 4 --> n = 2 resonance lines for neon-like ions with nuc
lear charge Z from 18 to 92. These results are compared with calculati
ons done by the Z-expansion method and the model potential method. Hig
h resolution measurements done at the EBIT facility are presented for
several high-Z ions and provide an important benchmark against which t
he various code results are compared.