Energy levels in a hydrogen atomDrawn to scale
From drop to spectral line
ΔE = hνc = νλh = 6.63 × 10−34 J s
c = 3.00 × 108 m s−1
c = 3.00 × 108 m s−1
Size of the drop, ΔE
ν = ΔE ÷ h · bigger drop, higher frequency
Frequency, ν
λ = c ÷ ν · higher frequency, shorter wavelength
Wavelength, λ
Hydrogen emission spectrumEach panel is zoomed to fit its series