Evidence for the Quantized Electronic Energy Levels - Atomic Spectra

Calculate the wave number for the longest wavelength transition in the Balmer series of atomic hydrogen.

What is the wavelength of light emitted when the electron in a hydrogen atom undergoes a transition from an energy level with n = 4 to an energy level with n = 2?

What transition in the hydrogen spectrum would have the same wavelength as the Balmer transition n = 4 to n = 2 of He⁺ spectrum?

Calculate the wavelength for the emission transition if it starts from the orbit having radius 1.3225 nm and ends at 211.6 pm. Name the series to which this transition belongs and the region of the spectrum.

Emission transitions in the Paschen series end at orbit n = 3 and start from orbit n and can be represented as v = 3.29 × 10¹⁵ (Hz) [1/3² – 1/n²]

Calculate the value of n if the transition is observed at 1285 nm. Find the region of the spectrum.

What is the experimental evidence in support of the idea that electronic energies in an atom are quantized?