Question

define co-ordination number.

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Answer 1

Answer:

the number of atoms or ions immediately surrounding a central atom in a complex or crystal.

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Answer 2

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In chemistry, crystallography, and materials science, the coordination number, also called ligancy, of a central atom in a molecule or crystal is the number of atoms, molecules or ions bonded to it. The ion/molecule/atom surrounding the central ion/molecule/atom is called a ligand.

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