Coordination number is a characteristic of which of the following?

coordination-number-is-a-characteristic-of-which-of-the-following

Coordination number is a characteristic of which of the following?

A. Central atom

B. Ligand

C. Coordination entity

D. Coordination compound

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Origin of the question is Definitions in division Coordination Compounds of Chemistry – Class 12

Right answer is A. Central atom

The best explanation: Coordination number is also known as the secondary valence of a central metal ion in a complex and is defined as the number of donor atoms it is directly bonded to. Hence, coordination number is a quantity associated with the metal ion.