The penultimate column of There remains a question of how important are the higher angular momentum diffuse functions developed in this work to the EAs of the heavy p-block elements. While the overall effect of including these functions is displayed in Table , it is interesting to place the magnitude of this change into context with the effect of post frozen-core CCSD(T) contributions. Outside of SO effects, the largest FPD contribution to the EAs is correlation of outer-core electrons, hence Table VII compares the effect of augmenting with higher angular momentum diffuse functions (∆aug) with the effect of correlating the (m -1)d electrons (∆d). This ∆d is evaluated as the difference between the EAs with msp + (m-1)d electrons correlated and those with only the msp valence electrons correlated. In both cases the newly developed aug-cc-pVnZ-PP-F12 orbital and auxiliary basis sets are used with a geminal Slater exponent of 1.0 a -1 0 . Calculations with separate geminal exponents for the valence and outer-core electrons were not tested in this case, but would be likely to yield further improvements. Comparison of the absolute values of ∆aug and ∆d for any given basis set shows that these two contributions to the EA are of roughly the same magnitude, hence the addition of higher angular momentum diffuse functions is of the same importance as accounting for the correlation of (m -1)d electrons.