3.1.1 Ionisation Energies Flashcards
1
Q
Ionisation energy down a group
A
The shielding of outer electrons increases.
The distance between the nucleus and outer electrons increases.
The attraction beteeen the nucleus and outer electrons decreases.
The first ionisation energy always decreases.
2
Q
Ionisation energy across a period.
A
The shielding of outer electrons stays roughly the same.
The nuclear chard increases.
The attraction between the nucleus and outer electrons increases.
The first ionisation energy generally increases.