SEARCH Articles Figures Tables Electrons geometry Four Electron Groups Tetrahedral Geometry Molecular shape tetrahedral electron-group geometry Tetrahedral electron-group geometry Tetrahedral electronic geometry Tetrahedral electronic geometry Tetrahedral electronic geometry AB2U2 species Tetrahedral electronic geometry AB3U species Tetrahedral electronic geometry AB4 species Tetrahedral electronic geometry ABU3 species Tetrahedral geometry Valence shell electron pair repulsion tetrahedral geometry