Castilla Y León PAU Chemistry Practice Questions - Castilla Y León PAU Chemistry (Química 2o Bachillerato) Exam

Na⁺ is larger than Na, and Cl⁻ is smaller than Cl. Na⁺ is smaller than Na, and Cl⁻ is larger than Cl. Both Na⁺ and Cl⁻ are larger than their neutral parent atoms. Both Na⁺ and Cl⁻ are smaller than their neutral parent atoms.