The Structure of an Atom Chapter 3 Early Theories Greek Philosophers 4 Elements Air Fire Wind Water Democritus Atoms make up matter Aristotle Refuted Democritus and atomâs…

Unit 3: The Atom The Atom 1 Basic Atomic Theory Atom = âindivisibleâ in Greek Atoms are indivisible and indestructible Atoms of same element are identical Compounds are…

Unit II Atomic Structure Atoms, Elements & Isotopes 1 Daltonâs Atomic Theory proton, neutron and electron isotopes exist Four postulates (1808)... All elements are composed…

Chemistry Chapter 3 Chemistry Chapter 3 Counting atoms atomic number- # of protons in atom of an element identifies element tells also # of e- Au, K, C, V remember atoms…

Ch. 4 - Atomic Structure I. Subatomic Particles (p.113 - 114) Subatomic Particle Properties electron proton neutron e- p+ n0 Electron cloud nucleus nucleus – + 0 1/1840…

Atomic Structure and the Periodic Table Ch. 5 Atoms 5-1 Early Models of the Atom Democritus â 4th century BC â world made up of empty space and tiny particles called atoms…