Electrons Flashcards
1
Q
Definition of ‘First Ionisation energy’
A
The energy required to remove one electron from each atom in one mole of gaseous atoms to form gaseous 1+ ions
2
Q
Why is a half-filled sub-level configuration more stable that others?
A
Because of the minimum electron repulsions
3
Q
How will I1 change to I2 and I3 etc?
A
The increasing positive charge attracts the remaining electrons more strongly
4
Q
What does ‘Isoelectric’ mean?
A
Same S, P, D and F levels
5
Q
What is the ‘Aufbau Principle’?
A
Electrons fill in order of increasing energy
