What is the current understanding of the nature of an atom?
What is the role of evidence in the development of models of the atom?
In what ways are previous models of the atom still valid despite recent advances in understanding?
How can emission spectra allow for the properties of stars to be deduced?
How is the distance of closest approach calculated using conservation of energy?
How can emission spectra be used to calculate the distances and velocities of celestial bodies?
Under what circumstances does the Bohr model fail? (NOS)
How have observations led to developments in the model of the atom? (NOS)
the Geiger–Marsden–Rutherford experiment and the discovery of the nucleus
nuclear notation (Z, A, X)
that emission and absorption spectra provide evidence for discrete atomic energy levels
that photons are emitted and absorbed during atomic transitions
that the frequency of the photon released during an atomic transition depends on the difference in energy level as given by E = hƒ
that emission and absorption spectra provide information on the chemical composition
Bohr to quantum mechanics.pdf