(a(i))[2]
Explain why the first ionisation energy shows an overall increase across the third period.
(a(ii))[2]
Sketch, on the graph, the positions of the ionisation energies for the two elements that come before Mg in this sequence.
(a(iii))[4]
Explain, with reference to electron arrangements, the fall in first ionisation energy between Mg and Al and between P and S. Mg and Al. P and S.
(b(i))[3]
Identify L. Explain any properties and observations given. Include equations where suitable.
(b(ii))[3]
Identify M. Explain any properties and observations given. Include equations where suitable.