1. Unit 2: Atomic Structure and the Periodic Table
What do I need to know?

2. Models of the Atom
Know 5 models by picture and name: Dalton, Thomson, Rutherford, Bohr, Quantum
Explain key features of each model and how it is different from the previous models

3. Atomic Structure Determining # of protons, neutrons, electrons
Atomic number =
Mass number =
Isotopes:
Isotope notation:

4. Electromagnetic Spectrum
p. 213 in textbook

5. Electron Configurations
4 types of subshells/orbitals:
# of electrons in each type of subshell
# of orbitals in each type of subshell
Write full and shorthand electron configurations – know where the s, p, d, and f blocks are!

6. Orbital Notation Draw orbital notation diagrams: Aufbau:2s 2p 3s 3p 4s 3d
Aufbau:
Pauli Exclusion:
Hund:

7. Quantum Numbers
n, l, ml , ms
n =
l =
ml =
ms =

8. Periodic Table Families

9. Periodic Table Trends