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Openai/6946f4fa-e8bc-800b-b77e-c62f6390a97c
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=== ## === ===== : ===== ===== : ===== ===== a. Kr 的 1s 軌域比 He 的 1s 軌域小,因為 Kr 的核電荷較大 ===== b. Kr 的 1s 軌域比 He 的 1s 軌域大,因為 Kr 有較多電子 c. Kr 的 1s 軌域比 He 的 1s 軌域小,因為 Kr 的 p 與 d 軌域擠壓 s 軌域 d. Kr 與 He 的 1s 軌域一樣大,因為 s 軌域最多只能放 2 個電子 e. Kr 的 1s 軌域比 He 的 1s 軌域大,因為 Kr 的游離能較低 ==== | | | | ==== | --- | --- | --- | | | | | | | | | | | | | | | | | ==== ### ==== : ===== - He - Z = 2 - 幾乎沒有遮蔽 - 1s 電子受到的吸引力小 ===== * Kr - Z = 36 - 雖然有很多內層電子 - 但 1s 電子非常靠近核 - 感受到極大的核吸引力 👉 結果: Kr 的 1s 軌域比 He 的更小\boxed{\text{Kr 的 1s 軌域比 He 的更小}}Kr 的 1s 軌域比 He 的更小 ===== - a ✅ 正確原因、正確結果 ===== * b ❌ 電子多 ≠ 軌域大 * c ❌ p、d 軌域在外層,與 1s 無關 * d ❌ 電子數限制 ≠ 軌域大小 * e ❌ 游離能比較錯誤對象 ==== ### ====
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