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Download Chapter 4 Atomic Structure- Review Guide 4.1 History of the Atom
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Name__________________________________Class_______Date____________ Chapter 4 Atomic Structure- Review Guide 4.1 History of the Atom –Fill out the following charts p.100-105 Scientist What was their atomic theory? Democritus Aristotle John Dalton Scientist J.J. Thomson Ernest Rutherford What was their experiment- Explain! What was their model of the atom?Explain! Name__________________________________Class_______Date____________ 1. What is an indirect observation? 4.2 The Structure of an Atom p.108-112 1. List the three subatomic particles. Include their charge AND location. 2. Which two subatomic particles have similar masses? 3. What does the atomic number tell us about an atom of a certain element? 4. What is the mass number of an atom tell us? 5. What is an isotope? 6. What are the similarities and differences between oxygen-18 and oxygen-17? Draw the following atoms: (*Make sure to list the subatomic particles!) Sulfur (S): Nitrogen (N): Name__________________________________Class_______Date____________ Fill out the following chart using your Periodic Table: Element Name Element Symbol Atomic # Mass # Protons Electrons Neutrons Calcium Ar 11 4.3 Modern Atomic Theory p.113-118 1. What did Bohr’s model of the atom do that Rutherford’s did not? 2. What are energy levels? 3. Can an electron move from one energy level to the next? When can they do this? 4. What is the electron cloud model AND what do scientists use it for? 5. What is an orbital? 6. Define ground state.
