Test students' recall of characteristic physical and chemical properties, typical electron configurations and oxidation states, periodic trends (reactivity, atomic radius, ionization energy, electronegativity), and representative elements and common compounds for Groups 1 (alkali metals), 2 (alkaline earth metals), 17 (halogens) and 18 (noble gases); include short identification and matching tasks (e.g., identify a group from given properties, name representative elements such as Li, Mg, Cl, Ar, and classify formulas like NaCl or Ca2+).