What type of bond is present between metals and ligands in a complex?
Correct answer: A. Coordinate covalent
- A. Coordinate covalent
- B. Ionic
- C. Metallic
- D. Covalent
Explanation
A coordination complex is the product of a Lewis acid-base reaction in which neutral molecules or anions (called ligands) bond to a central metal atom (or ion) by coordinate covalent bonds. Ligands are Lewis bases - they contain at least one pair of electrons to donate to a metal atom/ion. Metals and ligands form coordinate bonds, which essentially means that both the bonding electrons in the bond come from one species. There is sharing of electrons in covalent bonds and a complete transfer of electrons in ionic bonds.
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About Transition Elements
Transition elements are identified by their partially filled d subshells in atoms or common ions. The topic covers the electronic structure of d-block elements, including the filling order of 4s and 3d orbitals, variable oxidation states and the distinction between transition elements and elements with completely filled d subshells.
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