Bohr Model Calculator
Free calculate atomic properties using the bohr model including electron radius, energy levels, and energy transitions.
Input Parameters
Energy level (1, 2, 3, ...)
1 for hydrogen, 2 for helium, etc.
→
Initial and final energy levels
Results
Enter parameters to calculate atomic properties
Bohr Model Formulas
Radius
rₙ = (n² × a₀) / Z
Where a₀ = 5.29 × 10⁻¹¹ m (Bohr radius)
Energy
Eₙ = -13.6 × Z² / n² eV
Energy of electron in nth orbit