The Nature of Molecules Chapter 2. 2 Atomic Structure All matter is ____________ atoms. Understanding the structure of atoms is critical to understanding.
The Nature of Molecules Chapter 2. 2 Why should we study atoms? Substances with mass and space – Matter All matter is composed of atoms. Understanding.
Periodic Characteristics Valence electrons determine chemical & physical properties of the elements Valence electrons – the electrons in the outermost.
Chapter 6: The Periodic Table and Periodic Law. Development of the Periodic Table 1790s –Antoine Lavoisier composed a list of the 23 known elements –Included.
Earth Chemistry Objectives –Compare chemical properties and physical properties of matter –Describe the basic structure of an atom –Compare atomic number,
