Question

(iii) Sodium is more metallic than aluminium.​

Answer 1

Answer:

sodium i.e. ionization energy of aluminium is higher than sodium. This makes sodium more metallic than aluminium.

Explanation:

Thus, the effective nuclear charge is more on aluminium than sodium and thus aluminium has a smaller size. Thus, removal of electrons from aluminium requires higher energy than sodium i.e. ionization energy of aluminium is higher than sodium. This makes sodium more metallic than aluminium.