Your book was correct that a five coordinate metal complex is able to adopt both square pyramidal and trigonal bipyramidal geometries, and in both cases the ... ... <看更多>

First of all, you will notice that each layer of balls in the pyramid is formed by a number of balls that is a perfect square (1, 4, 9, 16, ... ... <看更多>

The trigonal pyramidal geometry exists when there are 3 bonds and 1 lone pair. This is seen in ammonia (right). The bond angle for trigonal pyramidal ... ... <看更多>

This picture features a square pyramid. A square pyramid is a polyhedron that has a square base and 4 triangles that meet at an apex. ... <看更多>