Use the Balmer equation to determine the wavelength, in nm, of the line in the Balmer series corresponding to n = 4. The constant for Balmer's equation is 3.2881 × 10¹⁵ s-1.

Question

Quizplus · Accepted Answer

The Balmer series corresponds to transitions where the final energy level is n=2. For n=4 to n=2, use the formula 1/λ = R_H (1/2² - 1/4²), where R_H is the Rydberg constant (1.097 x 10^7 m^-1). Solving gives λ ≈ 486 nm.

Use the Balmer Equation to Determine the Wavelength, in Nm