Question

Li2co3 is unstable other alkali matel carbonate are relatively stable​

Answer 1

Answer:

Lithium being very small in size polarises a large CO3²- ion leading to the formation of more stable Li2O and CO2. All the carbonates of alkali metals (except lithium carbonate) are thermally quite stable. That's Why Li2CO3 is decomposed at a lower temperature whereas Na2CO3 at higher temperature.

Explanation:

Lithium being very small in size polarises a large CO3²- ion leading to the formation of more stable Li2O and CO2. All the carbonates of alkali metals (except lithium carbonate) are thermally quite stable. That's Why Li2CO3 is decomposed at a lower temperature whereas Na2CO3 at higher temperature.