Bohr proposed adding to the model the new idea of quanta put forth by Max Planck in 1901. That way, electrons existed at set levels of energy, that is, at fixed distances from the nucleus.
One of his chief interests was working out problems involved in the Bohr-Rutherford model of the atom. He just barely received his PhD in 1923 -- nearly failing because he had neglected his ...
The Standard Model of particle physics explains the electromagnetic ... where light can exhibit both particle and wave-like properties. In 1913, Neils Bohr proposed that electrons in an atom ...
UPDATE: While anticipation builds for the Model Y refresh, CEO Elon Musk has also repeatedly referenced more affordable models coming in 2025. (Updates with news about Model Q. See below.) ...