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, the radiation would cause it to lose energy and spiral down into the nucleus. Bohr solved this paradox with explicit reference to Planck's work: an electron in a Bohr atom could only have certain defined energies En COUNT 7
QSN1 Who introduced the first quantized model of the atom? ANS1 Niels Bohr QSN2 When was the first quantized model of the atom introduced? ANS2 1913 QSN3 Why was the first quantized model of the atom introduced? ANS3 to overcome a major shortcoming of Rutherford's classical model QSN4 In classical electrodynamics, a charge moving in a circle should do what? ANS4 radiate electromagnetic radiation QSN5 Who modeled the atom in 1913, challenging Rutherford's model? ANS5 Niels Bohr QSN6 What was predicted to happen to a nucleus-orbiting electron under Rutherford's model? ANS6 the radiation would cause it to lose energy and spiral down into the nucleus QSN7 What statement did Bohr make about the electron of an atom, citing Planck's work? ANS7 an electron in a Bohr atom could only have certain defined energies