Define diagonal relationship between the elements.List two similaritie

1.	Define diagonal relationship between the elements.List two similarities in chemical behavior of Li with Mg.
Answer» oxides of lithium and magnesium are less soluble in H₂O. also the hydroxides of both decompose at high temperature. 2LiOH→Li₂O+H₂O Mg(OH)₂→MgO+H₂O (ii) Nitrides is formed from both the lithium and magnesium when they react with N_2. 6Li+N₂→2Li₃N 3Mg+N₂→Mg₃N₂ (iii)Neither Li nor Mg form superoxides or peroxides.

Define diagonal relationship between the elements.List two similarities in chemical behavior of Li with Mg.

Answer»

oxides of lithium and magnesium are less soluble in H₂O. also the hydroxides of both decompose at high temperature.

2LiOH→Li₂O+H₂O

Mg(OH)₂→MgO+H₂O

(ii) Nitrides is formed from both the lithium and magnesium when they react with N_2.

6Li+N₂→2Li₃N

3Mg+N₂→Mg₃N₂

(iii)Neither Li nor Mg form superoxides or peroxides.