PPT-History of the Atomic Model

Review for Quiz Match the Atomic Model to the Person who designed the model Use the Models Above Niels Bohr John Dalton Ernst Rutherford JJ Thomson Niels Bohr D John Dalton A Ernst Rutherford C. Atomic Theory Timeline has changed over time. different models As scientists have learned more and more about atoms, the atomic model has changed. Atomic Theory Timeline Dalton Thomson Rutherfo Chemistry. Videos . Atomic Theory: Dalton, Democritus, Thomson, Rutherford, and Quantum. History of the . atom. . History of the atom Video #2. The Development of the Atomic Theory. J.J. Thomson . Contribution. 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”. __(1)___ is anything that has mass and takes up space.. All matter is made up of ___(2)__.. Convert the following. .56 L= _(3)_ mL. 34.8 dm = _(4)__ dam. __(5)__ are created by combining an acid and a base.. Bohr’s model explained an unusual event. When electric current flows through a gaseous element, the gas . produces a glowing light, like a neon sign.. If this light is passed through a prism, a pattern of lines appears, with each line having a different color. The pattern depends on the element- neon has one pattern and helium another. What causes these lines and why are they always the same for a given element?. Chapter 3. Types of Models – Why do we use models?. Physical Model vs. Conceptual Model. Physical model. is a representation of a very large or small object shown at a convenient scale. . 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.. The Nature of Light . The quantum-mechanical model (a.k.a. the electron cloud model) – An atomic model that explains the strange behavior of electrons.. Electrons determine the chemical and physical properties of elements.. Matter describes anything that has . mass. and . volume. Can matter be invisible? . YES. Ex. . Air. Matter and Atoms. History of atoms. Democritus. Was a . Greek. philosopher in . 400 BC. Thought the universe was made of . Chemistry. Basics of the Atom . Subatomic. Particle. Charge. Location in. the Atom. Mass. a.m.u.. : unit used to measure mass of atoms. “atomic mass unit”. proton. neutron. electron. 1 . 0. 1–. Lundquist -- 2016. Properties of Matter. Unit 2.1. Describing Matter. Extensive. Dependent on amount. Mass. Volume. Weight. color. Intensive. Amount does not matter. Boiling point. Melting point. Density (. Theory Scientists that changed our view of the atom Mrs. Baldessari Chemistry ?Greatest Chemistry Discoveries?? – YouTube What: All matter is a combo of fire, air, earth or water When: 350 B.C. Wh 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.. Atomic Theory. 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..