| 软酸 | Pd2+,Pt2+,Pt4+,Cu+,Ag+,Au+,Cd2+,Hg+,Hg2+,Br2,Br+,I2,I+ |
| 交界酸 | Fe2+,Co2+,Ni2+,Cu2+,Zn2+,Rh3+,Ir3+,Ru3+,Os2+,Sn2+,Pb2+,Sb2+ |
| 硬酸 | H+,Li+,Na+,K+,Be2+,Mg2+,Ca2+,Sr2+,Sc3+,La3+,Ce4+,Gd3+,Lu3+,Th4+,Ti4+,Zr4+,Hf4+,Cl (Ⅲ),I (Ⅴ),I (Ⅶ) |
| 软碱 | H-,R-,C2H4,C6H6,CN-,RNC,CO,SCN-,R3P,(RO)3P,R3As,R2S,RSH,S2O32-,I- |
| 交界碱 | C6H5NH2,C5H5N,N3-,N2,NO2-,SO32-,Br- |
| 硬碱 | NH3,RNH2,N2H4,H2O,OH-,O2-,ROH,R2O,CH3COO-,CO32-,NO3-,PO43-,SO42-,ClO4-,F- |