Which of the following factors contributes to the increase in atomic size within a group in the periodic table as the atomic number increases?

Which of the following factors contributes to the increase in atomic s

1.	Which of the following factors contributes to the increase in atomic size within a group in the periodic table as the atomic number increases?
Answer» These FACTORS are: The number of protons in the nucleus (called the nuclear charge). The number of energy levels HOLDING electrons (and the number of electrons in the OUTER energy LEVEL). The number of electrons held between the nucleus and its outermost electrons (called the SHIELDING effect).