For 10 points, name this scientist who developed a quantized planetary model of the atom, and who was from Denmark.
The distance between a hydrogen nucleus and its ground-state electron is called this man's "radius". He explained Balmer's spectral lines by positing a model in which energy emitted is proportional to the inverse of an integer (*) n squared, and in which electrons orbit the nucleus in quantized distances. For 10 points, name this scientist who developed a quantized planetary model of the atom, and who was from Denmark.
The distance between a hydrogen nucleus and its ground-state electron is called this man's "radius".
Niels Bohr (accept Bohr radius)