Which transition metal is known for its ability to form complex ions with a variety of ligands and is used in biological systems?

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Q: Which transition metal is known for its ability to form complex ions with a variety of ligands and is used in biological systems?

Solution: Copper is known for its ability to form complex ions and plays a crucial role in biological systems, such as in hemocyanin.

Steps: 5

Step 1: Identify what a transition metal is. Transition metals are elements found in the middle of the periodic table that can form various compounds.
Step 2: Understand what complex ions are. Complex ions are formed when transition metals bond with molecules or ions called ligands.
Step 3: Recognize that some transition metals are better at forming complex ions than others. We are looking for one that is well-known for this ability.
Step 4: Consider the role of transition metals in biological systems. Some transition metals are essential for life and play important roles in biological processes.
Step 5: Identify copper as a transition metal that forms complex ions with various ligands and is used in biological systems, such as in hemocyanin, which is important for oxygen transport in some animals.