Correct the following statements by changing the under lined part of the sentence (Do not change the whole sentence)
The coordination number of Co in `[Co(en)_3]^(3+)` is 3.

Explanation

To correct the statement, we need to analyze the coordination number of cobalt in the complex ion `[Co(en)₃]^(3+)`.

1. **Identify the Ligand**: The ligand in the complex is ethylene diamine (en), which is a bidentate ligand. This means that each ethylene diamine molecule can coordinate to the metal center (cobalt) at two points.

2. **Count the Ligands**: In the given complex, there are three ethylene diamine ligands (en) attached to the cobalt ion.

3. **Calculate the Coordination Number**: Since each ethylene diamine ligand can bind at two sites, the total coordination number can be calculated as follows:
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