Transition metals

Question 1

What is a transition metal?

Answer 1

A stable ion with a partially filled d-orbital

Question 2

What are characteristics of transition metals?

Answer 2

Variable oxidation state
Form complex ions
Good catalysts
Form coloured ions

Question 3

What are complex ions?

Answer 3

Formed when ligands bond to the transition metal ions via co-ordinate bonds

Question 4

What is the co-ordination number?

Answer 4

The number of co-ordinate bonds formed

Question 5

What is a ligand?

Answer 5

A atom/ion/molecule that forms a co-ordinate bond by donating a lone pair of electrons

Question 6

Examples of ligands forming octahedrals?

Answer 6

H2O
NH3
EDTA 4-

Question 7

Examples of ligands forming tetrahedrals?

Answer 7

Cl-

Question 8

Examples of ligands forming square planar?

Answer 8

CN- and Cisplatin

Question 9

Examples of ligands forming linear?

Answer 9

[Ag(NH3)2]+

Question 10

When might substitution between ligands occur?

Answer 10

There is a higher concentration of a ligand
The product is more stable
Delta S is positive