CHEM 104 Study Guide - Comprehensive Final Exam Guide - Acid, Ion, Ph
Document Summary
Lecture 1-chen 104, - vsepr, vbt, and polarity. Chem 103 review e- = electrons: lewis structure: shows all valence e- as dots and others as lines that represent covalent, lewis structures, single covalent bond: formed when two atoms share one pair of electrons. (cid:1832) (cid:1832) ex. : diatomic molecules ((cid:2870),(cid:1832)(cid:2870),(cid:1829)(cid:2870)) (cid:1829) (cid:1829) e- to ahain an octet of valence e- ((cid:2870)(cid:2872) configuration) bond. * the number of e- that an atom of a main-group element must share to achieve an octet e(cid:395)uals eight (cid:373)i(cid:374)us it"s a-group number * double-bond: two shared pairs of electrons (cid:1829)=(cid:1829) (cid:1829) (cid:1829) triple-bond: two shared e- pairs ex. C || / \ h h double bond (cid:1840)(cid:2870) (cid:1840) (cid:1840): triple bond carbonyl group: one of several functional groups that are very important in organic and biochemical molecules. C=o: polarity nonpolar covalent bond: equal sharing of the bonding election pair polar covalent bond: bonding e- are shared unequally.
