1. Electron Configuration Assigning Electrons to Orbitals

2. Diagram for additional rule 1s 2s 2p 3s 3p 3d 4s 4p 4d 4f 5s 5p 5d 5f 6s 6p 6d 6f 7s 7p 7d 7f

3. Quantum Numbers Energy levels correspond to rows on the periodic table! Quantum numbers specify the location of electrons in an atom Ex:fluorine1s 2 2s 2 2p x 2 p y 2 p z 1 The principal quantum number (the floor the student was on) indicates the energy level occupied by the electron Ex: fluorine 1s 2 2s 2 2p x 2 p y 2 p z 1

4. Quantum Numbers The angular momentum quantum number (the different types of rooms) indicates shape of the orbital the electron is in Ex: fluorine 1s 2 2s 2 2p x 2 p y 2 p z 1 s = spherical p = dumbbell d = too complex f = too complex

5. Orbital Shapes The s and p types of orbitals

6. Quantum Numbers The magnetic quantum number (the specific room the student was placed in, not just the type) indicates the position of the orbital in space Ex:fluorine1s 2 2s 2 2p x 2 p y 2 p z 1 OrbitalNumber of electrons s 2 p 6 d 10 f 14

7. Electron Configurations and the Periodic Table

8. Quantum Numbers