Editing Openai/6946f4fa-e8bc-800b-b77e-c62f6390a97c (section)

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===== a. All six C–C bonds are known to be equivalent. =====
b. Each carbon atom is sp² hybridized.
c. The localized electron model must invoke resonance to account for the six equal C–C bonds.
d. It has delocalized π bonding in the molecule.
e. The π bonds of carbon involve sp² orbitals.

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* 每個 C：sp² 混成
* 每個 C 保留 一個未混成 p 軌域
* 6 個 p 軌域形成 整個環的離域 π 系統

===== - 實驗結果：6 條鍵長完全相同 ✅ 正確 =====

===== - 平面結構、120° ✅ 正確 =====

===== - Lewis 單雙鍵無法直接解釋 =====
* 必須引入共振 ✅ 正確

===== - 芳香性核心概念 ✅ 正確 =====

===== - ❌ 錯誤 =====
* π 鍵由「未混成 p 軌域」形成
* sp² 軌域只形成 σ 鍵

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===== a. N₂ =====
b. N₂⁻
c. N₂²⁻
d. N₂⁺
e. N₂²⁺

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===== - N₂：鍵階 = 3（三鍵） =====

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===== - 鍵階最大 = N₂（3） =====
* → 鍵最強

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