If an element has seven electrons in its outermost shell then it is likely to have the …………….. (largest / smallest) atomic size among all the elements in the same period.
If an element has seven electrons in its outermost shell then it is likely to have the smallest atomic size among all the elements in the same period.
As the the number of electrons in the outermost orbital increases, the invert pull of nucleus also increases ,therefore the atom gets shrinked and size decreases.