Chapter 2 Susan Solomon: O 3 is ________ which filters ___________ light.
Biochemistry. What are the main parts of an atom? Essential Question.
Lecture 13: Basic Circuit Theory I EEN 112: Introduction to Electrical and Computer Engineering Professor Eric Rozier, 4/1/13.
The Chemical Level of Organization. Matter –elements –atoms and molecules Chemical bonds Chemical energy Chemical reactions Inorganic compounds Organic.
The Chemical Level of Organization Chapter 2 2-1.
Atomic Structure. Rules Of Atomic Structure 1.The Number of electrons = number of protons 2.Atomic Number = the number of protons/electrons 3.Atomic Mass.
Chapter 2
Chapter 4 Section 2 Notes Ionic and Covalent Bonding.
How many spherical objects can you think of? Starter.
Chapter 2. Atom Element = the smallest unit of matter that cannot be broken down = a pure substance made of only one kind of atom.
A look at early models of the atom…. HISTORY OF ATOMIC THEORY.
Warm up
