Orbit radius ∝ n² — set two levels, then emit or absorb
Emit photon
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Presets
Lyman series
Balmer series
Paschen series
Initial level
nᵢ = 3
Final level
n_f = 2
Balmer visible lines:
Hα · 656 nm
Hβ · 486 nm
Hγ · 434 nm
Lyman-α · 122 nm
Transition
n=3 → n=2 (emission)
E(nᵢ)
−1.51 eV
E(n_f)
−3.40 eV
Photon ΔE
1.89 eV
Wavelength λ
656.5 nm
Frequency
4.57×10¹⁴ Hz
Series
Balmer
Colour
Visible · red
Bohr Model of Hydrogen ↗ LK Forge
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