Bohr Model Energy Levels
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Constant used — built into this formula, no need to enter
Rydberg energy (hcR∞)Learning zone
Bohr's 1913 model quantized the hydrogen atom into a ladder of energies −13.606 eV/n², negative because the electron is bound. Every line in hydrogen's spectrum is a hop between rungs: the n = 3 → 2 jump releases 1.89 eV of red light at 656 nm — the Hα line that colors nebulae pink across the sky. Ionization from the ground state costs exactly 13.606 eV, and though quantum mechanics replaced Bohr's orbits with orbitals, his energy ladder survives untouched.
Bohr Model Energy Levels
Where
- = Level energy
- = Principal quantum number
Missing one of these? Work it out first, then come back
- Level energy — Kinetic Energy, Photon Energy (E = hf)
- Principal quantum number — Simple Interest, Compound Interest (Periodic)