Open Question
Determine the geometry for the following complex ion:[Cr(NH3)4Cl2]2+
24. Transition Metals and Coordination Compounds
Ligands
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EDTA is a ligand that can wrap itself completely around the metal ion, donating up to six pairs of electrons; this ligand is a type of __________.
A
coordination compound
B
chelating agent
C
complex ion
D
coloring agent
Verified step by step guidance1
Understand the concept of ligands: Ligands are ions or molecules that can donate electron pairs to a central metal atom or ion, forming a coordination complex.
Learn about chelating agents: Chelating agents are a specific type of ligand that can form multiple bonds with a single metal ion, effectively 'wrapping' around the metal ion.
Recognize the role of EDTA: Ethylenediaminetetraacetic acid (EDTA) is a common chelating agent that can donate up to six pairs of electrons to a metal ion, forming a stable complex.
Differentiate between terms: Coordination compounds are structures formed by the coordination of ligands to metal ions, while complex ions are charged species formed by such coordination. Coloring agents are substances that impart color, unrelated to the function of EDTA.
Identify the correct term: Given the description of EDTA as a ligand that wraps around a metal ion, the term 'chelating agent' is the most appropriate choice.
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