5 Questions
Which term is used to describe the number of atoms, molecules or ions bonded to a central atom in a molecule or crystal?
Coordination number
Who originally defined the concept of coordination number in 1893?
Alfred Werner
How is the coordination number determined for molecules and polyatomic ions?
By counting the number of bonds formed by the central atom
What is the coordination number of the central cation in [Cr(NH3)2Cl2Br2]−?
6
Which coordination number is commonly observed in molecules and crystals?
4
Test your knowledge of coordination numbers and ligancy in chemistry and materials science. Learn about the number of atoms, molecules, or ions bonded to a central atom, and how it differs between molecules and crystals.
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