In comparison to the parent atom, the size of the — Periodic Table and Periodicity Chemistry Question

💡 Solution & Explanation

I notice your question is incomplete — it cuts off at "the size of the..." without specifying what you're comparing (anion, cation, etc.) or providing the answer options. **However, common completions for this question type are:** **If asking: "size of anion vs parent atom"** - **Answer: Anion is LARGER** - **Reason:** When an electron is added, electron-electron repulsion increases, pushing the electron cloud outward while nuclear charge remains unchanged. **If asking: "size of cation vs parent atom"** - **Answer: Cation is SMALLER** - **Reason:** Loss of electrons reduces electron-electron repulsion; the same nuclear charge now pulls the remaining electrons more tightly inward. **If asking: "size of isoelectronic ions"** - **Answer: Ion with lower nuclear charge is LARGER** - **Reason:** Same number of electrons, but nuclear attraction varies with proton number. --- **Please provide:** 1. The complete question statement 2. All answer options (A, B, C, D) Then I can give you a precise, targeted explanation for why option A is correct.