Castilla-La Mancha PAU Chemistry (Química - UCLM 2026) Practice Questions - Castilla-La Mancha PAU Chemistry (Química - UCLM 2026) Exam

Which of the following chemical species has the largest ionic radius?

Cl⁻ K⁺ Ca²⁺ S²⁻

Correct Answer:

S²⁻

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