# Problem: What is the wavelength (in nm) of the least energetic spectral line in the visible series of the H atom?

###### FREE Expert Solution
• H atoms are capable of exhibiting several series of spectral atoms depending on the spectral region

• The least energetic spectral line in the visible series can be obtained when an electron jumps from n = 2 to n = 3

• Use the Rydberg equation to find the wavelength (λ) where:

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###### Problem Details

What is the wavelength (in nm) of the least energetic spectral line in the visible series of the H atom?