Formation Of Coloured Ions

Question 1

Ligands split the 3d sub shell into

Answer 1

Two energy levels

Question 2

Most electrons occupy the

Answer 2

Lower orbital/ ground state

Question 3

To jump up to the higher orbital (excited state) the electrons need

Answer 3

Energy equal to the energy gap (deltaE)

Question 4

DeltaE =

Answer 4

hv

Question 5

Four factors affecting size of energy gap

Answer 5

1) central metal ion
2) cmi ox state
3) ligand
4) co ord no.

Question 6

Colours of compounds (reflected) are the compliments of those

Answer 6

Absorbed

Question 7

If there are no 3d electrons or the 3d sub shell is full then the compound will appear

Answer 7

White or colourless

Question 8

Three causes of colour change

Answer 8

1) change in ox state
2) change in ligand
3) change in co ord no.

Question 9

Spectrometry can be used to find conc of tmi by

Answer 9

Shining white light through a filter at an ion solution where the amt of light absorbed is recorded by a colorimeter

Question 10

The higher the conc of solution the…the amt light absorbed

Answer 10

Higher