First of a four-semester sequence covering the basic concepts of general & organic chemistry. Establishes a foundation of fundamental particles & the nature of the atom, develops a rationale for molecular structure, & explores the basis of chemical reactivity. Topics: introductory quantum mechanics, atomic structure, chemical bonding, spectroscopy, & elementary molecular reactivity. CHEM 1811 or 1411 may be taken concurrently or after completing CHEM 1810. Drop/withdrawal from CHEM 1810, requires drop/withdrawal from CHEM 1811/1411.