Doolan's Chemistry Class

Atomic Structure and Periodicity
All matter is composed of atoms. All matter can be described in terms of the arrangements and interactions between these elements. 


Section 1: The structure of atoms 

Elements have characteristic structures that can be explained based upon electrostatic interactions between negative electrons and positive protons in the nucleus. Photoelectron Spectroscopy (PES) and Ionization energy data provide insight into this structure and using Coulombic interactions can be qualitatively predicted.
Assigned Lecture:
EK1B1 - Coulombic Interactions
Lecture Summary: The Coulombic interactions that we will focus on are the interactions between electrons and nuclei. We will look at how these interactions give way to the unique electronic structure of each element.
Tutorial Lectures:
Ionization Energy
PES
Using E = hv
Atomic Emission Spectrum
Outside Resources
Arizona State U. Flash - PES data
Wikipedia data page - Ionization E
Electronic excitation series
Concept Map: Coulombic Interactions
Doolan's Notes: Coulombic Interactions
Key Q's and Vocab: Coulombic Interactions

Assigned Lecture:
EK1B2 - Electronic Configurations
Lecture Summary: We know the energetics of an electron in an atom can be understood by applying Coulomb's Law. We are now going to take that concept of electrons in quantized energy shells and describe the electronic structure of the atom using electron configurations.
Tutorial Lectures:
Shielding
Exceptions to IE
Paramagnetic -vs- Dimagnetic
Outside resources
Orbital Shapes
Concept Map: Electronic Configurations
Doolan's Notes: Electronic Configurations
Key Q's and Vocab: ​Electronic Configurations


Section 2: Periodic Trends

The electronic structure of atoms leads to specific trends when placed in increasing atomic number. Trends can be predicted and qualitatively explained using electronic structure. Trends are also a powerful tool used in molecular design.
Assigned Lecture:
EK1C1 - Periodic Trends
Lecture Summary: Periodicity can be explain qualitatively with Coulomb's Law, the shell model of the atom, and shielding because of the regular variations that occur in the electronic structure of atoms.
Tutorial Lectures:
Atomic Radius
Ionic Radius
Electronegativity
Outside Resources
Periodic Trends Interactive P.T.
Radius Interactive PT
Concept Map: Periodic Trends
Doolan's Notes: Periodic Trends
Key Q's and Vocab: Periodic Trends

Assigned Lecture:
EK1C2 - Shell -vs- Quantum Mechanical
Lecture Summary: The shell model refers to Bohr's model of an atom and is useful in making predictions but the Quantum Mechanical Model is the currently accepted "best" model of an atom based upon current data.
Tutorial Lectures:
Quantum Numbers
Outside Resources
Spooky Electrons!
Concept Map: Shell -vs- Quantum Mechanical
Doolan's Notes: Shell -vs- Quantum Mechanical
Key Q's and Vocab: ​Shell -vs- Quantum Mechanical


Class FRQ 1 KEY