Question

Discuss in outline the diagonal relationship of beryllium with aluminium

Answer 1

Answer:

Diagonal Relationship Of Beryllium and Aluminium. Beryllium shows resemblance with its diagonally opposite element aluminium. Points of similarity are: .Both Be and Al are resistant to the action of acids due to the formation of protective film of the oxides on their surface.

Answer 2

The diagonal relationship of Beryllium and Aluminium is as follows:

- Beryllium is the first element of 2nd group and Aluminium is the second element of 13th group.

- Both beryllium and Aluminium forms compounds with covalent character.

- Both metals form an oxide film on the surface and hence are not attacked by acids easily.

- Beryllium dissolves in NaOH to give beryllate ion and Aluminium also gives aluminate ion on dissolving in NaOH.

- Chlorides of both these metals have a bridged structure in the gaseous phase.

- These metals have strong tendency to form complexes.