the type of central-atom orbital hybridization corresponds to each electron-group arrangement:
trigonal planar
What is trigonal planar molecular geometry?
A trigonal planar molecular geometry model has one atom in the centre and three atoms at the corners of an equilateral triangle, known as peripheral atoms, all in the same plane.
All three ligands in an ideal trigonal planar species are identical, and all bond angles are 120°. Molecules with three ligands which are non-identical deviate from this idealised geometry.
The trigonal planar molecular geometry has 0 lone pairs. When there are 1 lone pair and 2 bond pairs present, the molecular geometry becomes bent or angular, whereas the electron geometry remains the same – trigonal planar.
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