AS Chemistry - Ionisation Energy

?
Define First Ionisation Energy
The energy needed to remove one electron from each atom in one mole of gaseous atoms to form one mole of gaseous 1+ ions.
1 of 10
Define successive ionisation energy
The energy required to remove each electron in turn.
2 of 10
Where is the first electron removed from, explain your answer.
The outer shell as this is the highest energy electron.
3 of 10
Explain why ionisation is always an endothermic process.
Energy is required to overcome attraction between positive nucleus and the negative outer electron which is being removed.
4 of 10
As atomic radius increases, ionisation energy..
decreases
5 of 10
As electron shielding increases, ionisation energy..
decreases
6 of 10
As nuclear charge increases, ionisation energy..
increases
7 of 10
Down a group, first ionisation energy..
decreases
8 of 10
Across a period, ionisation energy..
increases
9 of 10
State and explain the general trend in successive ionisation energies
 As each electron is removed ionisation energy increases because  the proton: electron ratio increases, this tends to increase ionisation energy  the remaining electrons are closer to the nucleus, this tends to increase ionisation energy 
10 of 10

Other cards in this set

Card 2

Front

Define successive ionisation energy

Back

The energy required to remove each electron in turn.

Card 3

Front

Where is the first electron removed from, explain your answer.

Back

Preview of the front of card 3

Card 4

Front

Explain why ionisation is always an endothermic process.

Back

Preview of the front of card 4

Card 5

Front

As atomic radius increases, ionisation energy..

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Ionisation Energy resources »