Module 3 - F325

Question 1

Transition Element

Answer 1

A transition element is a d-block element that forms an ion with an incomplete d sub-shell.

Question 2

Complex ion

Answer 2

A complex ion is a transition metal ion bonded to one or more ligands by coordinate bonds

Question 3

Ligand

Answer 3

A ligand is a molecule or ion that can donate a pair of electrons with the transition metal ion to form a coordinate bond.

Question 4

Coordination number

Answer 4

The coordination number is the total number of coordinate bonds formed between a central metal ion and its ligands

Question 5

Stereoisomers

Answer 5

Stereoisomers are species with the same structural formula but with a different arrangement of the atoms in space.

Question 6

Ligand Substitution

Answer 6

Ligand substitution is a reaction in which one ligand in a complex ion is replaced by another ligand.

Question 7

Stability constant, Kstab

Answer 7

The stability constant, Kstab, is the equilibrium constant for an equilibrium existing between a transition metal ion surrounded by water ligands and the complex formed when the same ion has undergone a ligand substitution.