Niels Bohr introduced the first quantized model of the atom in 1913, in an attempt to overcome a major shortcoming of Rutherford's classical model. In classical electrodynamics, a charge moving in a circle should radiate electromagnetic radiation. If that charge were to be an electron orbiting a nucleus, <answer>the radiation would cause it to lose energy and spiral down into the nucleus</answer>. Bohr solved this paradox with explicit reference to Planck's work: an electron in a Bohr atom could only have certain defined energies En
What was predicted to happen to a nucleus-orbiting electron under Rutherford's model?
the radiation would cause it to lose energy and spiral down into the nucleus