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Openai/6946f4fa-e8bc-800b-b77e-c62f6390a97c
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==== ### ==== EN A photon with wavelength 500 nm provides just enough energy to promote an electron from the second quantum level to the third. From this information, we can deduce: 中 波長為 500 nm 的光子,剛好使電子由第二能階躍遷到第三能階。根據此資訊,可推論出什麼? a. 能階 n=2 的能量 b. 能階 n=3 的能量 c. n=2 與 n=3 能量的總和 d. n=2 與 n=3 能量的差 e. 以上皆是 ===== 電子躍遷時: ===== Ephoton=ΔE=En=3−En=2E_{\text{photon}} = \Delta E = E_{n=3} - E_{n=2}Ephoton=ΔE=En=3−En=2 ===== - 題目說「just enough energy」 ===== * 表示光子能量 正好等於能階差 * 單一能階的絕對能量無法由一個躍遷得知 ===== ✅ d. the difference in energies between n = 2 and n = 3 =====
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