Elements and periodic table
Elements, atoms, ions, and the periodic table. Right now our picture of the atom: protons (+1) and neutrons (()) in nucleus and electrons (-1) in region.
LecturePLUS Timberlake1 Chapter 2 Atoms and Elements 2.1 Elements and Symbols 2.2 Periodic Table.
Chemical bonding
The chemists tools Elements and the periodic table.
1 Chemical Compounds Chapter 3 Jons J. Berzelius 1779-1848. Accurately determined atomic weights, used in future Periodic Table. Originated modern chemical.
