Atoms, Molecules, and Ions 41 A Look Ahead • We begin with a historical perspective of the search for the fundamental units of matter. The modern version of atomic theory…

42 Atoms, Molecules, and Ions 2.1 The Atomic Theory In the fi fth century b.c. the Greek philosopher Democritus expressed the belief that all matter consists of very small,…

Slide 1 Warm Up Riddle You are shown five cards face down on a table. You are told that the five cards are as follows: 1 Joker and 4 Aces (each of a different suit). Given…

Slide 1 Warm Up Riddle You are shown five cards face down on a table. You are told that the five cards are as follows: 1 Joker and 4 Aces (each of a different suit). Given…

Nuclear Chemistry Last revision: 110409 M. Jones Pisgah High School Atomic Theory Atomic Theory Atoms are the smallest particles of elements. Atoms were first proposed by…

ATOMIC THEORY IN THE BEGINNING Atoms originally named by Democritus Believed the a substance could be divided over and over again only to a point If divided further it would…

Atoms, Isotopes, and Ions 4.3 – 4.7, 4.10, 4.11 Atomic Theory In 1808 John Dalton proposed atomic theory. Dalton’s theory explained several laws known at the time. Law…

Chapter 11 Introduction to Atoms Section 1: Objectives Describe some of the experiments that led to the current atomic theory. Compare the different models of the atom. Explain…

History of the Atom Scientists who shaped the modern atomic theory 4th Century Greece Democritus first suggested matter was made of atoms there was no way to test these theories…

No Slide Title 1 Introduction to Chemistry Bio-Chemistry âThe Chemistry of Lifeâ 1 2 The Atomic Theory All matter (living and non-living) found on Earth is composed of…