Basics of transition metal chem

Question 1

What is a transition metal?

Answer 1

an element which has an incomplete d-subshell or gives rise to an anion with an incomplete d-subshell

Question 2

Which group in the d-block are not considered transition metals? Which elements are these?

Answer 2

Group 12

Zn, Cd and Hg

Question 3

Where are the ligands on a d-orbital?

Answer 3

Along the axes

Question 4

Which shapes of d-orbitals are influenced more by ligands?

Answer 4

dz²

dx²-y²

Question 5

Which shapes of d-orbitals are less influenced by ligands?

Answer 5

dxy
dxz
dyz

Question 6

How would you calculate the number of d electrons?

Answer 6

Group number - oxidation state

Question 7

What are the d configurations of the 2+ ions in order?

Answer 7

In order of the number of elements

Eg. Sc2+ is d1, Ti2+ is d2 V2+ is d3 etc…

Question 8

How would you then use the 2+ d configurations to work out other ions?

Answer 8

Add or minus electrons according to the charge

Question 9

What is the d configuration of Cr 3+?

Answer 9

d3

Question 10

What is the d configuration of Fe 3+?

Answer 10

d5

Question 11

What are the common oxidation states of Sc?

Answer 11

2+

Question 12

What are the common oxidation states of Ti?

Answer 12

4+

Question 13

What are the common oxidation states of V?

Answer 13

3+, 4+, 5+

Question 14

What are the common oxidation states of Cr?

Answer 14

2+, 3+, 6+

Question 15

What are the common oxidation states of Mn?

Answer 15

2+, 4+, 7+

Question 16

What are the common oxidation states of Fe?

Answer 16

2+, 3+, 4+

Question 17

What are the common oxidation states of Co?

Answer 17

2+, 3+

Question 18

What are the common oxidation states of Ni?

Answer 18

2+

Question 19

What are the common oxidation states of Cu?

Answer 19

1+ 2+

Question 20

What are the common oxidation states of Zn?

Answer 20

2+