CHM 109 Lecture Notes - Lecture 5: Radiography, Octet Rule, Electronegativity
Document Summary
Brief outline of ch 12 chemical bonding or, the story of the valence electrons, (revised f 2012) the outermost electrons on an atom. Some valence electrons form the chemical bonds between atoms. All valence electrons are responsible for molecular shapes. Recommended practice questions from the end of ch 12 on pp 368 + in 6th ed. , 5th ed. , or pp 361+ in 4th ed. Bonds: a bond is one or more electron pairs between 2 atoms often depicted as 2 dots or one-line c h or c h there can be 2 electrons, making a single bond (common) c c. 4 electrons, making a double bond or (uncommon) c c only csnop. A molecule with single, double and triple bonds. 12. 3 covalent bonds in molecules can be single, double or triple bonds. A electrons are shared equally (or almost equally) between the two atoms in the bond.
