Chemistry 2.1: Electron Configuration Chemistry · Lesson 2.1 Electron Configuration Shells, Subshells, Orbitals & the Aufbau Principle In this lesson Why It Matters Shells & Subshells Orbitals The Three Rules Filling Order Writing Configurations Valence Electrons Exceptions Config Builder Worked Examples Practice Takeaways 01 Why Electron Configuration Matters In Tier I we learned that electrons […]
Chemistry 1.8: Basic Chemical Reactions Chemistry · Lesson 1.8 Basic Chemical Reactions Reactants, Products, Conservation of Mass & Balancing Equations In this lesson Writing Equations State Symbols Why Balance? Balancing Method Reaction Types Practice Balancer Worked Examples Practice Takeaways 01 Writing Chemical Equations A chemical equation is a symbolic representation of a chemical reaction. It […]
Chemistry 1.7: Atomic Mass & Atomic Number Chemistry · Lesson 1.7 Atomic Mass & Number Isotopes, Relative Atomic Mass, Atomic Number & Calculations In this lesson Quick Review Atomic Mass Units Isotopes in Depth Relative Atomic Mass Calculations Reading the Table Worked Examples Practice Takeaways 01 Quick Review In Lesson 1.5 we introduced the three […]
Chemistry 1.6: The Periodic Table Chemistry · Lesson 1.6 The Periodic Table Layout, Periods, Groups, Metals, Nonmetals & Metalloids In this lesson History Layout Reading an Element Key Groups Element Categories Metals, Nonmetals & Metalloids Worked Examples Practice Takeaways 01 History of the Periodic Table By the mid-1800s, chemists had identified dozens of elements and […]
Chemistry 1.5: Introduction to the Atom Chemistry · Lesson 1.5 Introduction to the Atom Protons, Neutrons, Electrons & Atomic Structure In this lesson History of Atomic Theory Atomic Structure Subatomic Particles Atomic Notation Isotopes Ions Worked Examples Practice Takeaways 01 History of Atomic Theory The idea that matter is made of indivisible particles dates back […]