What is the coordination number of the central metal ion in the complex ion [Co(

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Question: What is the coordination number of the central metal ion in the complex ion [Co(NH3)6]Cl3? (2021)

Options:

Correct Answer: 6

Exam Year: 2021

Solution:

In the complex ion [Co(NH3)6]Cl3, the central metal ion Co is surrounded by 6 ammonia (NH3) ligands, which gives it a coordination number of 6.

What is the coordination number of the central metal ion in the complex ion [Co(NH3)6]Cl3? (2021)

What is the coordination number of the central metal ion in the complex ion [Co(NH3)6]Cl3? (2021)

Step 1: Identify the complex ion, which is [Co(NH3)6]Cl3.
Step 2: Look at the central metal ion, which is Co (Cobalt).
Step 3: Count the number of ligands (molecules that surround the metal ion). In this case, there are 6 ammonia (NH3) ligands.
Step 4: The coordination number is defined as the number of ligands attached to the central metal ion.
Step 5: Since there are 6 ammonia ligands, the coordination number of Co is 6.

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