3. E n j o y Y o u r S t a y ! ~ D a v i d F o s t e r & M i k e S c o b l e t e HA

11. (Manager Norman Bates) Fill rooms from ground floor upwards. Put one guest in each room in a hallway until all rooms are occupied then put a second guest in. Rooms with two guests must contain one male and one female.

12. Hotel vs Real Atom Floor = Energy level (1-7) Hallway = Sublevel (s, p, d, f) Room = Orbital (1, 3, 5, 7) Guest = Electron (2 per orbital) Gender = Spin (  )

14. Electron Filling Rules AUFBAU Atoms fill from lowest energy level to highest HUND Place one electron in each orbital in a sublevel until all orbitals in that sublevel are occupied. Then place a second electron in each. PAULI EXCLUSION In an orbital, electron pairs must be opposite spin

15. HA