Lect2 up120 (100325)
CHEMICAL BONDS. A.Compounds 1.Are made from more than one type of atom (element) 2.Are made during a chemical chg 3.Have properties different from the.
1. Review of Ancient Models of Matter Leucippus and Democritus - the idea of the “atom” – the indivisible particle Empedocles and Aristotle - the 4- element.
Unit 3 Elements , Atoms, and Ions (Oh My!)
Chapter 10. Measuring Matter Matter can be measured in three ways By mass By volume By counting.
Atomic Theorists
STRATEGIES FOR THE DETECTION OF UNKNOWN BIOLOGICAL AGENTS Dr. Peter J. Stopa US Army Edgewood Chemical Biological Center Aberdeen Proving Ground, MD.
Chapter 5 – Atomic Structure Atoms Structure of An Atom Distinguish Between Atoms The Periodic Table.
CHEMICAL BONDS
