Consider the following reactions:
(i) 2 Na(s) + Cl₂(g) → 2 NaCl(s)
(ii) 2 Cs(s) + Cl₂(g) → 2 CsCl(s)
Predict which reaction is expected to be more exothermic per mole of Cl₂ consumed and justify your choice using periodic trends in ionization energy and lattice energy.