Study Guide

Atoms, Molecules, and Ions Topics

The Atomic Theory

Nice expression, Democritus (c. 460 – c. 370 BCE). (Image from here)We heart this guy...

Atomic Structure

Before we can learn about all things atom, we should probably start with the most basic question:...

Important Atomic Values

Chemistry can seem a lot like a foreign language. It's all about learning the lingo. Let's jump...

Molecules

A non-scientific person might think a molecule is a fuzzy furry rodent, but we know better. A...

Ions

An atom is neutral, which means it contains the same number of protons and electrons. The...

Chemical Formulas

As we mentioned earlier, chemistry is a lot like a foreign language. One particular notation that...

Test Your Knowledge

1. Two important people in the development of the atomic theory are _____ and _____.A. Democritus...