PPT-Atomic Theory Development

What is Todays Model Dense Positively Charged Nucleus Mostly Empty Space Negatively Charged Electron Cloud Most Probable Location of the Electrons Composed of Protons Neutrons and Electrons. 096 Recommended Resources Civilization Revolution Manual p 51 61 CivilizationRevolutionExpandedDSManualpdf httpdownloads2kgamescomcivilizationrevolutionCivilizationRevolutionExpandedDSManualzip wwwcivfanaticscom forums2kgamescom TechTreeDetailspdf Bell Ringer . Review..Frame. your argument. Bell Ringer: What was the name of the program to build the Atomic Bomb? Who was the lead scientist?. Agenda: Notes/discussion. Objective: Through Discussion and notes students will begin to understands the steps leading to the dropping of the atomic bomb.. 2:. Atomic Theory. and Structure. (. c. 400 B.C.. ) Democritus proposed that “. atomos. ” are . indivisible. .. Atom. : . smallest particle . of matter that . retains its properties. .. Early Models of the Atom. , Austin. Dalton’s Atomic theory. John . D. alton (1766-1844) developed an atomic theory that proposed that atoms were responsible for the combinations of elements found in compounds.. Who was he?. Chemistry. Learning Goals . To be able to . explain and draw atomic structure. Elements. Elements are the . building blocks. of all . matter. on Earth. Elements are made up of . atoms. Differences in . On your bell work . sheet, answer the following.. When . are zeros significant? . . When . do you use the fewest number of Significant Figures?. Objectives. The Structure of the Atom. Properties of Subatomic Particles. Advanced Chemistry. Ms. . Grobsky. Food For Thought. Rutherford’s model became known as the “planetary model”. The “sun” was the positively-charged dense nucleus and the negatively-charged electrons were the “planets”. Chapter 1D. Warm Up November . 28. What is smaller, an atom or a cell? . Name and describe one element that you are familiar with on the periodic table. . When large blooms of algae die, decomposers use all the oxygen in the water to break down the dead algae. What is this a result of? . Principal Source:. Boltzmann’s Atom. David Lindley, The Free Press, . New York 2001. Atom. Greek ‘Uncutable’ . Universe composed of indivisible objects. Philosophy and Atomic Theory. Titus Lucretius . I. Foundations of the Atomic Theory. A. 400 B.C. –Democritus. 1. Defined nature’s basic particles as . atoms. a. means indivisible. B. 350 B.C. Aristotle. 1. said matter was made of the 4 “elements”. The atom: from philosophy to scientific theory . 400 BC . – . Democritus. came up with the idea of the . ________. Nature’s . basic particle. ______________. His ideas were not useful in explaining chemical behavior because . FDR receives a letter from Albert Einstein. Informed FDR of recent developments in splitting uranium atoms. Could lead to “extremely powerful bombs of a new type” by means of nuclear fission. Nucleus absorbs a neutron, breaks into two equal fragments. How and why has the Atomic Theory changed over time? . How can we describe the molecular motion of the states of matter? . Objectives. Students will explain that atoms are the smallest unit of an element and are composed of subatomic particles.. Science is based off of observations.. A Scientific Law is a summary of what is seen in observations. . A Scientific Theory is an explanation of why these observations are occurring.. Both laws and theories are tested by using them to predict what would happen in certain situations..