Contents Introduction Podcast Questions and Answers Flashcards Study Notes Johann Dobereiner (Model of Triads) Dobereiner's Triads Drawbacks of Dobereiner's Model John Newlands (Law of Octaves) System Limitations Lother Meyer's Curve The Curve's Characteristics Dmitri Mendeleev Mendeleev's Original Periodic Table Details Modern Periodic Table Periodic Table Structure Columns (Groups) s-Block Elements: Group 1 and 2 Electron Configuration Codes d-Block Element Overview (Transition Elements) p-Block Elements (groups 13-18) Lanthanide Series Actinides Series More Actions PDF Questions Make a copy Study Flashcards Play Quiz Podcast Play an AI-generated podcast conversation about this lesson 0.7x 0.9x 1x 1.1x 1.3x 1.5x 1.7x 2x Questions and Answers Export Questions are hidden until you start the quiz Play Quiz Flashcards are hidden until you start studying Study Flashcards