Species | Hybridization | Geometry | Number of lone pairs |
$NO _3^{-}$ | $sp ^2$ | Trigonal planar | Zero |
$AsO _3^{3-}$ | $sp ^3$ | Pyramidal | One |
$CO _3^{2-}$ | $sp ^2$ | Trigonal planar | Zero |
$ClO _3^{-}$ | $sp ^3$ | Pyramidal | One |
$SO _3^{2-}$ | $sp ^3$ | Pyramidal | One |
$BO _3^{3-}$ | $sp ^2$ | Trigonal planar | Zero |