Pomocy zadanie na jutro chemia czesc 1 str 71 zadania 48 i 49

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.

thats a little if u want the answer just look it up on google thats what i do haha : )