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Bohr model describes hydrogen atom with electrons in discrete energy levels. Though superseded by quantum mechanics, it provides intuitive understanding of atomic structure.
Trin-for-trin guide
- 1Enter principal quantum number (n)
- 2The calculator finds electron radius, energy, and transition frequencies
- 3Results show orbital properties
Løste eksempler
Input
n = 2 (first excited state)
Resultat
r = 4 × Bohr radius ≈ 212 pm, E = -3.4 eV
Relative to n=∞
Almindelige fejl at undgå
- ✕Treating electron orbits as literal paths (they're energy levels)
- ✕Applying Bohr model to multi-electron atoms
Ofte stillede spørgsmål
Why can't electrons radiate away and fall to nucleus?
Bohr postulated discrete energy levels with no intermediate states; electrons jump between levels, emitting specific frequencies.
Why is Bohr model incomplete?
It only works for hydrogen; it can't explain multi-electron atoms or fine structure revealed by quantum mechanics.
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