Electronic configuration of $$\mathrm{Na^+}$$ is $$(2,8)$$ and that of sodium element is $$(2,8,1)$$. Choose the correct statements. 

i. $$\mathrm{Na^+}_{(g)}$$ is more stable than $$\mathrm{Na}_{(g)}$$. 

ii. $$\mathrm{Na^+}_{(g)}$$ is less stable than $$\mathrm{Na}_{(g)}$$. 

iii. $$\mathrm{Na^+}_{(aq)}$$ is more stable than $$\mathrm{Na}_{(aq)}$$. 

iv. $$\mathrm{Na^+}_{(aq)}$$ is less stable than $$\mathrm{Na}_{(aq)}$$.