Transition Elements Flashcards
Definition of Transition Elements
A transition element is a d-block element which forms at least one stable ion with partially filled d orbital
Definition of Complex Ions
A complex ion is a species that contains a central metal atom/ion surround by molecules or anions (known as ligands) which forms coordinate bonds to the metal centre
Definition of Ligands
A ligand is a molecule or anion with at least one lone pair of electrons that it can use to form a coordinate bond to the central metal atom/ion in a complex ion
Definition of Coordination Number
The coordination number of a metal atom or ion a complex ion is the total number of coordinate bonds formed to the central metal atom/ion
Definition of Ligand exchange reaction
A ligand exchange reaction is a reaction in which weaker ligands are substituted by stronger ligands
Cl- < OH- < H2O < NH3 < en < CN- < edta4-