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The top documents tagged [positive sphere]
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Thomson and Rutherford’s contributions to the model of the atom
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Atoms: Building Blocks of Matter. Structure of an Atom Subatomic particles: 3 particles that make up an atom (protons, neutrons, e ee electrons) –N–Nucleus:
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Test #5 Atomic Theory Listen to the Atom Song
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Part I. Leucippus and Democritus (460 to 370 BC) – believed that all matter was made up of tiny particles called atoms. Aristotle (384 to 322 BC) – believed
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II. History of atomic structure A. Democritus – 500 BCE Theorized that matter is composed of small, indivisible particles = ATOMOS (Greek for indivisible)
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What elements make up these substances? 1. Sodium (Na) in salt 2. Helium ( He) in balloons 3. Iron ( Fe) in cars. Rust means iron is present. 4. Gold (
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Chapter 4 – The Atom Evolution of the Atomic Model Democritus (400 bc) First to conceptualize the atom. He thought that matter was composed of tiny particles
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Unit 3 Lesson 1 The Atom Copyright © Houghton Mifflin Harcourt Publishing Company
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1 The Atom, in a nutshell…. 2 Democritus (c. 460—370 BC) Greek philosopher The name atom was his idea Proposed matter is made up of small particles
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Good Day! 11/10/2015 Starter: What does an atom look like? Today we will… Look at grade sheets and discover the history of the atom. Goal: –determine
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Atomic Theory
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Good Morning! Starter: What does an atom look like? Today we will… Check the starter questions What do you know about the Atom? Goal: –determine what
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