At the most fundamental level, all of chemistry is a reflection of the ways in which electrons and nuclei interact with each other. The behaviour of electrons a

The molecular structure hypothesis - that a molecule is a collection of atoms linked by a network of bonds - was forged in the crucible of nineteenth century ex

This is an on-line textbook for an Introductory General Chemistry course. Each module develops a central concept in Chemistry from experimental observations and

As part of the Physics 2010 decadal survey project, the Department of Energy and the National Science Foundation requested that the National Research Council as