(d) ionisation energies and electron configuration Flashcards
1
Q
what is ionisation energy?
A
The energy required to remove one mole of electrons from one mole of gaseous atoms.
2
Q
When are subshells most stable?
A
When they are filled or half filled.
3
Q
Why is a full or half filled shell more stable?
A
The more the electronic configuration, then the more difficult is to remove an electron and therefore the ionisation energy is higher.
4
Q
What kind of repulses are there between electrons in the same orbital?
A
Electron-electron repulsions.
