Equations · equation
Bohr Model Energy Levels
Atomic Physics · 1913
- Equation
- Eₙ = −13.6 eV / n²
- Field
- Atomic Physics
- Named After
- Niels Bohr
- Year
- 1913
Symbols
Eₙ energy of the electron in the nth orbit · n = 1, 2, 3, … the principal quantum number · 13.6 eV the ionization energy of hydrogen; the differences give Rydberg's lines exactly
Significance
Electrons may only occupy certain orbits, and jumping between them emits light of the difference in energy — Bohr's rule reproduced Rydberg's formula and predicted R_H from h, e, and mₑ alone. Wrong in its details, right in its spirit, and the bridge from Planck's quantum to Schrödinger's atom; the periodic table's shell structure follows from n.
Spectral Types
A-type Stars
Referenced by
constant
element
equation
event
theory
Open on the Equations shelf — the interactive card, the filters, and everything alongside it.