In Rutherford's atomic model, electrons are in circular orbit around nucleus. My teacher said, "It has limitation. According to classical electromagnetic theory, the electrons are acceration and they will emit radiation and lose energy. And finally spiral into nucleus. Th atom will collapse if Rutherford is correct. But in reality atom doesn't collapse so the model has limitation." I get confused. Doesn't the electron orbit around the nucleus in reality? Why Rutherford is wrong ?