Which of the following techniques is most appropriate for separating solid silver chloride from an aqueous solution? a) paper chromatography b) filtration c) titration using a burette and a strong acid d) electrolysis e) evaporating to dryness

Because silver chloride is solid. The most appropriate way for separating solid silver chloride from an aqueous solution is b) Filtration.

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 atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons