• Describe the evidence that supports the idea that the simple particles have a property we call charge.
  • Describe the evidence that led Thomson to suggest that the mobile charge in atoms is negative.
  • Use the Thomson model of the atom to account for the fact that neutral atoms can become either positively or negatively charged by the loss or gain of electrons.
  • Identify properties that distinguish metals from non-metals.
  • Describe the evidence that distinguishes ionic from molecular or atomic solids.
  • Given the formula of an ionic or molecular substance, state its name.
  • Given the name of ionic or molecular substance, write its formula.
  • From the name or formula of a substance determine whether that substance is ionic or molecular.




Counting Subatomic Particles
Calculating Average Atomic Mass
Nuclear Decay
Half Life Problems
History of Atomic Theory
Millikan’s Oil Drop Experiment
Drawing Bohr Models
Emission Spectra and Bohr Model
Electron Configurations
Electron Configuration Song
Magnetic Induction
Periodic Videos
Valence Electrons & The Periodic Table
Writing Formulas for Ionic Compounds
Naming Ionic Compound with Polyatomics
Naming Ionic Compounds with Transition Metals (Roman Numerals)
Naming Covalent (Molecular) Compounds
Naming Acids
Lewis Dot Structures
Exceptions to the Octet Rule
Crash Course: Polar vs. NonPolar
VSEPR Theory Intro
VSEPR Theory Practice Problems
VSEPR Theory Common Mistakes
Intermolecular Forces


PhET: Build an Atom
Gizmo: Element Builder
PhET: Isotopes and Atomic Mass
PhET: Rutherford Scattering
Gizmo: Intro to the Bohr Model 
Gizmo: Radioactive Decay
PhET: Faraday’s Law of Induction (How Electricity is Generated!  Super cool! Magic!)
Gizmo: Ionic Bonding
PhET: Molecule Shapes
PhET: Molecule Shapes Basics
PhET: Molecule Polarity


Alpha Decay
Beta Decay
Gamma Decay
Electron Configurations
Nuclear Decay Concept Builder
Intermolecular Forces