Element
Rydberg Formula
1/λ = R_H·Z² · (1/n₁² − 1/n₂²)
R_H = 1.097 × 10⁷ m⁻¹
Series
Result
—
Wavelength λ—
Wavenumber ν̃—
Frequency ν—
Energy ΔE—
Region—
Series—
Visible Spectrum + Spectral Lines
380 nm430 nm490 nm 560 nm620 nm680 nm750 nm
Series Lines
n₂ → n₁ λ (nm) Energy (eV) Region Colour
Energy Level Diagram