2: Atoms, Molecules, and Ions Last updated Jun 23, 2019 Save as PDF 1.7: Density and Density Problems 2.1: Atomic Theory of Matter Page ID54944 ( \newcommand{\kernel}{\mathrm{null}\,}\) Topic hierarchy2.1: Atomic Theory of MatterDalton's atomic theory2.2: Discovery of Atomic StructureJ.J. Thompson's CRT tube, Millikan's oil drop, and Rutherford's gold foil experiments2.3: Modern View of Atomic Structureprotons, neutrons, and electrons. isotopes and isotopic symbols.2.4: Atomic Weightpercent abundance of the isotopes and calculating and average atomic mass2.5: The Periodic TableMendeleeev and his basic scheme, periods, groups, metals, non-metals, and metalloids2.6: Molecules and Molecular Compoundsmolecular and empirical formulas2.7: Ions and Ionic Compoundsformation of ions, predicting charges, writing ionic formulas2.8: Nomenclature of Inorganic Compoundsnames of ionic compounds both fixed and variable charges, polyatomic ions, names of molecular compounds, names of acids2.9: Simple Organic Compoundshydrocarbons, alkanes, alkenes, alcohols, ethers, aldehydes, ketones, carboxylic acids, and amines