How to determine shape of coordination compound

[Leela_Mohan3L]

Specifically, how do you determine whether the shape is tetrahedral or square planar. How do you know how many lone pairs are on the transition metal cation in the center?

[Soyoung Park 1H]

Tetrahedral has 4 areas of electron density while square planar has 3, and they both have 0 lone pairs.

[305127455]

Looking at the formula and calculating bonds and valence electrons should do.

[Jaedyn_Birchmier3F]

Do the shapes coincide with the VSPER shapes or are they different. For example is a coordination compound with 3 bonds and one set of lone pairs a tetrahedral shape or a trigonal pyramidal shape?