A coordination complex consists of a metal atom or ion at the center surrounded by lone pair donors called ligands.
Coordination number is the number of atoms/ions immediate to the center metal atom/ion in a complex.
The formula for a complex is written in the following syntax:
M = metal
L = ligand
n = number of ligands
x = charge on complex (can be 0)
Write the formula for a complex formed between Zn2+ and NH3, with a coordination number of 3.
Write the formula for a complex formed between Zn2+ and OH-.
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