1) Explain the dual (wave and particle) nature of EMR and meaning of photon (also known as a quantum)
2) Explain what is meant by the discontinuous emission spectra of atoms (seen in flame tests or gas discharge tubes) and how the Bohr (Planetary) and Schrodinger (Quantum-Mechanical) model for electron structure explains these discontinuous spectra
3) Explain the basics of the two models including the quantization of electron energy levels, quantum numbers, ground vs. excited states, and the difference between orbits and orbitals and principal shell (or energy level) represented by a positive integer and subshell (or sublevel) represented by a letter s, p, d, f
4) How many electrons an orbital and each shell and subshell in the Schrodinger model can contain