Question
List the factors that can influence the ionic radius of an element.
Effective nuclear charge: As the effective nuclear charge increases, ionic radius decreases.
Shielding effect: As the shielding effect increases, ionic radius increases.
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$2\text{NH}_3(\text{g})+\text{CO}_2(\text{g})\rightleftharpoons\text{NH}_2\text{CONH}_2(\text{aq})+\text{H}_2\text{O(l)}$
Standard Gibbs energy change, $\Delta_\text{r}\text{G}^\circ$ at the given temperature is -13.6kJ mol-1.