Which best compares one mole of sodium chloride toone mole of aluminum chloride

a. they are both space stations

happy to

pls mark as brainliest.

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.

a polar bond is formed when electrons are shared unevenly between atoms