Question

_ sphere is enclosed in brackets in formulas for complex species, and it includes the central metal ion plus the coordinated groups.

Answer 1

Explanation:

The ______ sphere is enclosed in brackets in formulas for complex species, and it includes the central metal ion plus the coordinated groups.

chelating

Answer 2

Answer:

Coordination sphere is enclosed in brackets in formulas for complex species, and it includes the central metal ion plus the coordinated groups.

Explanation:

The initial coordination sphere in coordination chemistry refers to the collection of molecules and ions (ligands) that are immediately connected to the centre metal atom. The second coordination sphere is made up of molecules and ions that are attached to the first coordination sphere in various ways.

For example, in the complex K4[Fe(CN)6], [Fe(CN)6]4– is the coordination sphere and K+ is the counter ion.