PPT-Atomic Structure Subatomic Particles

Over the past century scientist have discovered that the atom is composed of 3 subatomic particles Protons Neutrons Electrons Checking for understanding Draw this diagram Label all subatomic particles and include their charges. Which subatomic particles have a charge?. proton and electron. Which subatomic particles are the heaviest?. proton and neutron. Copper has 29 protons. If it has a +2 charge, how many electrons does it have?. Electron. -. ve. charged particle. Outside of nucleus. Thomson’s discovery. Mass = 9.11 x 10. -28. g. Charge = -1.76 x 10. 8. C (coulombs). Proton. +. ve. charged particle. Inside nucleus. Rutherford’s discovery. 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. Textbook Pages 4-5. Lesson Objectives. Appreciate that there are various models to illustrate atomic structure. Know that early models of atomic structure predicted that atoms and ions with noble gas electron arrangements should be stable. 10/29/14. Changes Matter. Period 1. Period 4. Period 5. Period 6. CATALYST. What do you think an atom is?. *Answer in complete sentences!. Homework:. Binder. Notes (front). TURN IN write-ups if you didn’t yesterday. 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? . Ar. cluster ions – an . ab initio . study. 5-th School-Conference on Atomistic Simulation of Functional Materials. J.G. . Korobova. , . A.E . Ieshkin, . V.. S. . Chernysh. Moscow . State University, Physical Department. The lab technician shown here is using a magnifying lens to examine a bacterial culture in a petri dish. When scientists cannot see the details of what they study, they try to obtain experimental data that help fill in the picture.. Everything made of small particles. Called . atmos. Earth, air, fire, and water. Antoine Lavoisier. Law of Conservation of Mass . Mass cannot be created or destroyed. Mass of reactant= mass products. Pre-AP Chemistry. Charles Page High School. Stephen L. Cotton . Section 4.1 Defining the Atom. The Greek philosopher . Democritus. He believed that atoms were . indivisible. . and . indestructible. Dalton’s Atomic Theory. 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.. Daltons Atomic Theory. 1. All elements are composed of tiny . indivisible. particles called atoms.. 2. Atoms of the same element are identical. The atoms of one element are different from the atoms of another element..