Trigonal pyramidal is a molecular shape

that results when there are three bonds and one lone pair on the central atom in the molecule. Molecules with an tetrahedral electron pair geometries have sp³ hybridization at the central atom. Ammonia (NH₃) is a trigonal pyramidal molecule.

What makes trigonal pyramidal?

Central atom will at the apex and three other atoms or ligands will be at one base, where they are in the three corners of a triangle. There is one lone pair of electrons in the central atom. ... So when the position of the lone pair is neglected, the remaining bonds make the trigonal pyramidal geometry.

How do you explain trigonal pyramidal?

The trigonal pyramid is a molecular geometry that resembles a tetrahedron that has one atom at the apex and three atoms at the trigonal base corners. The molecule belongs to point group C₃v because all three atoms present at the corners are equal.