15.1.2 - Ligands and complexes

Question 1

What is different about the electronic configuration of chromium and copper?

Answer 1

they only have one electron in their 4s orbital instead of 2.

Question 2

What type of bonds do ligands form with central metal ion?

Answer 2

Dative covalent.

Question 3

What are some common types of ligands?

Answer 3

water
hydroxide
ammonia
chloride

Question 4

What are the names of water and ammonia in complexes?

Answer 4

Water = aqua
Ammonia = ammine

Question 5

What is the coordinate number of a linear complex and what metal usually forms these?

Answer 5

2

Ag+

Question 6

What ions usually form a square planar complex?

Answer 6

Platinum (II)
Nickel (II)

Question 7

What is the coordinate number of a tetrahedral complex and what ligand usually forms these?

Answer 7

4

Cl-

Question 8

What is the coordinate number of an octahedral compound and what ligands usually forms these?

Answer 8

6

water and ammonia

Question 9

What is the name given to copper and iron compounds when the overall charge is negative?

Answer 9

copper = cuprate
Iron = ferrate

Question 10

What is the bond angle in the following shapes of transition metal complexes?
Linear
square planar
tetrahedral
Octahedral

Answer 10

linear = 180
Square planar = 90
Tetrahedral = 109.5
Octahedral = 90