Why Big Fr and Hungry F

Francium is the biggest element with the lowest IE and highest EN for it is at the bottom left of the period. Francium only has 7 shells and one valence electron to pull and it holds it very loosely making it bigger and having a low IE because it doesn't hold closely or very effectively a little bit of energy will cause it to lose its valence electron. Francium has the lowest EN for it doesn't attract electrons strongly but instead gives them away very easily since it's a big element. Helium is the smallest element with the highest IE for it has a full shell with only 2 electrons and one shell. Helium holds together its electrons very tightly and it takes an extremely large amount of energy to remove an electron. The Noble Gases have full valence shells and doesn't need to lose or gain electrons because they're already stable. They don't have EN values because they don't need another electron, they're full. Fluorine has the highest EN because it is at the top right and is the smallest element with an EN value and attracts electrons the best, for it wants an electron to be stable.