Help no 4

Q4. Arrange the following as per instructions given in the brackets.

     (a) Mg, Cl, Na, S, Si (increasing order of atomic size)

     (b) K, Na, Cl, S, Si (increasing non-metallic character))

     (c) Na, K, Cl, S, Si (increasing ionisation potential) 

     (d) Cl, F, Br, I (increasing electron affinity )

     (e) Cs, Na, Li, K, Rb (decreasing electronegativity )