Pls help I’m failing

This is probably something you learned in elementary school: Rivers almost never flow in a straight line. Instead, they twist and turn along serpentine paths

curved

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.

c. electrical charges of ionic bonds.