1.

In group 1 (alkali metals), sodium is more reactive than lithium, or lithium is less reactive than sodium. Give reason.

Answer»

Solution :(i) The valence shell of SODIUM (2, 8, 1) is M-shell (n = 3). Its radius is LARGE. It is easy to remove its valence electron. Therefore, sodium is more reactive than LITHIUM.
(ii) The valence shell of lithium (2, 1) is L-shell (n = 2). Its radius is SMALL and the removal of valence electron is difficult as compared to sodium. Therefore, lithium is less reactive than sodium.


Discussion

No Comment Found