A kilometer is much greater in distance then a millimeter true or false

true

because if you look at a chart it will lable

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

the answer would be b i believe