Li is bigger because it is closer to being a less reactive element, it is closer reach to the noble gases.
1s2
2 Li + 2 H2O ------> 2 LiOH + H2
Li + CN-this is Lithium CyanideLiCN
The li (里, lǐ), the traditional Chinese unit of distance, which has varied considerably over time but now has a standardized length of 500 meters or half a kilometer (approx. 1640 feet)