Learning objective
Define ligand and coordinate bond.
Read the explanation, check the common trap, then practise with flashcards and questions.
At a glance
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Flashcards
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Questions
Topic
Transition metals (A-level only)
Subtopic
Complex ions and ligand substitution (A-level only)
Study support
Understand this objective
Quick explanation
Define ligand and coordinate bond
- This point belongs to Transition metals (A-level only), especially Complex ions and ligand substitution (A-level only).
- You need to be able to define ligand and coordinate bond.
- The key ideas to know are ligand and coordinate bond.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
Why it matters
This objective helps connect Complex ions and ligand substitution (A-level only) to exam-style questions, flashcards, and revision notes for Transition metals (A-level only).
Quick student answer
Which of the following statements correctly defines a ligand?
Direct answer
A ligand is a molecule that donates a pair of electrons to a metal ion.
Key terms
- Ligand: A molecule or ion that donates a pair of electrons to a metal ion in a coordination complex.
- Coordinate bond: A type of covalent bond formed when one atom donates both electrons to the bond.
Common trap
Confusing ligands with metal ions: Remember that ligands donate electron pairs to metal ions, which are the central atoms in complex ions.
Related questions
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Flashcard prompts
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Revision tools
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Practice Questions0 linked questions
Revision notestopic notes
Open the full topic revision notes when you are ready to review this objective in context.
Open revision notesRelated learning objectives
- Define a transition metal as a d-block element forming at least one ion with an incomplete d subshell.
Transition-metal characteristics (A-level only)
- Explain variable oxidation states in transition metals.
Transition-metal characteristics (A-level only)
- Explain why transition-metal ions are often coloured.
Transition-metal characteristics (A-level only)
- Explain catalytic activity of transition metals and their compounds.
Transition-metal characteristics (A-level only)
- Explain coordination number in complex ions.
Complex ions and ligand substitution (A-level only)