a) all can form valid SALCs

b) a 2s orbital at +z and a 2s orbital at -z

c) four 2s orbitals forming square around the z-axis

d) three 2s orbitals forming an equilateral triangle around z-axis

Point Group E 203 1 1 A Az E 2 A" 1 Az" E" 1 1 -1 2 30 1 -1 -1 1 Oh 1 1 2 -1 2S3 1 1 -2 -1 30, 1 -1 1 (R., R) Which set of orbitals could not be used to form a SALC in this point group? -1 2 R (x,y) N