The mathematician Johann Jakob Balmer found that the formula 1/λ = R (1/n_f² − 1/n_i²) works for the hydrogen emission lines in the visible range, with what value of n_f? A) 1 B) 2 C) 3 D) 4 E) 5

Question

Quizplus · Accepted Answer

The formula given is known as the Balmer series formula and is used to calculate the wavelengths of the visible emission lines in the hydrogen spectrum. The value of nS1U1B1fS1U1B0S1U1P12S1S1P0 is the final energy level of the electron in the hydrogen atom. In the visible range, only the Balmer series of hydrogen emission lines can be observed. This series corresponds to transitions from higher energy levels to the nS1U1B1 = 2 energy level. Therefore, the value of nS1U1B1fS1U1B0S1U1P12S1S1P0 in the Balmer series formula is 2. Hence, the correct answer is B) 2.

The Mathematician Johann Jakob Balmer Found That the Formula 1/λ