Niels Bohr was born ... absorbed energy, the electron jumped to a level further from the nucleus; if it radiated energy, it fell to a level closer to the nucleus. His model was a huge leap forward ...

Photo: Niels Bohr's research notes for ... nucleus like planets around the sun. In 1912 Bohr joined Rutherford. He realized that Rutherford's model wasn't quite right. By all rules of classical ...