Question) Explain the trend in the stability of alkali metal carbonates and hydrogencarbonates on moving down the group.
1. The stability of metal carbonates and bicarbonates increases down the group.
2. This is because the size of cations increases down the group and carbonate and bicarbonate ion are larger in size.
3. Thus, size compatibility increases, so stability increases.
2. This is because the size of cations increases down the group and carbonate and bicarbonate ion are larger in size.
3. Thus, size compatibility increases, so stability increases.