Questions and Answers
Which orbitals are electrons removed from first in transition elements?
4s
In coordination compounds, what is a complex ion composed of?
A central transition metal and ligands
What are counter ions in coordination compounds?
Ions outside brackets that are free and uncomplexed
What is a ligand in coordination compounds?
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What is the requirement for a molecule to be a ligand in coordination compounds?
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Study Notes
Transition Elements
- In transition elements, electrons are removed from the outermost d subshell first, followed by the s subshell.
Coordination Compounds
- A complex ion is composed of a central metal atom or ion bonded to one or more neutral molecules or negative ions, known as ligands.
Counter Ions
- Counter ions are ions that are not directly bonded to the central metal atom or ion in a coordination compound, but rather are present to balance the charge of the complex ion.
Ligands
- A ligand is a neutral molecule or negative ion that is bonded to the central metal atom or ion in a coordination compound.
- The requirement for a molecule to be a ligand is that it must have at least one unshared pair of electrons that can be used to form a coordinate covalent bond with the central metal atom or ion.
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Description
Test your knowledge on coordination compounds and complexation with this quiz! Learn about electron configuration exceptions, the energy levels of orbitals, and the definitions of coordination compounds.
