阿摩線上測驗
25. Na+ ions lead to a very distinct flame coloring. The color is mainly a result of the emission of photons with a wavelength of about....
(A) 380 nm
(B) 450 nm
(C) 590 nm
(D) 730 nm
(E) 810 nm
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統計： A(0), B(0), C(1), D(0), E(0) #3423766
統計： A(0), B(0), C(1), D(0), E(0) #3423766
