Quantum Number

http://www.wwnorton.com/college/chemistry/gilbert2/tutorials/interface.asp?chapter=chapter_07&folder=quantum_numbers

Electronic configuration

http://www.wwnorton.com/college/chemistry/gilbert2/tutorials/interface.asp?chapter=chapter_07&folder=orbital_filling

Bohr’s Atomic Model

http://www.wwnorton.com/college/chemistry/gilbert2/tutorials/interface.asp?chapter=chapter_07&folder=hydrogen_energies

Absorption and Emission Specturm

http://www.wwnorton.com/college/chemistry/gilbert2/tutorials/interface.asp?chapter=chapter_07&folder=emission_absorption