Why is atomic size of `Ca^(2+)` smaller than that of `K^(+)` ?

Why is the size F^(-) smaller tha that of O^(2-) ion?

Why is the atomic radius of gallium smaller than that of aluminium?

A : Atomic size of F is smaller than that of Cl . R : F- F bond is stronger than Cl-Cl bond .

A : Atomic size of F is smaller than that of Cl . R : F- F bond is stronger than Cl-Cl bond .

Why is the size of cation smaller then its parent atom?

Size of cation is smaller than that of atom because of

The atomic size of beryllium is smaller than the atomic size of lithium. Give reason.

Al^(3+) is smaller than Ca^(2+) .

Explain why the size of a cation is smaller than that of corresponding neutral atom and it is reverse for an anion.