3.1.1.3 Electron Configuration

What are the 4 orbitals?

S, P, D and F

How many pairs are in an S orbital

1

How many pairs in a P orbital

3

How many pairs in a D orbital

5 pairs

How many pairs in a F orbital?

7 pairs

what orbital comes first 3D or 4S

4S

define ionisation energy

energy required to remove 1 mol electrons from 1 mol gaseous atoms to form 1 mol gaseous unipositive atoms

What four things impact ionisation energy

atomic radius, nuclear charge, shielding, orbital pairs

what trends do ionisation energies have (3)

decrease down groups, increase across period, change in shell

What is the first ionisation energy equation for Al

Al(g)  —>   Al⁺(g) + e^-

What is the second ionisation energy equation for Al

Al⁺(g)     Al²⁺(g) + e^-