CHEMISTRY LESSON PLANS FOR HSTI ATOM MODULE

Transcription

1 CHEMISTRY LESSON PLANS FOR HSTI ATOM MODULE Lesson 1: History of Atomic Models Overview (1) Analyze various historical models of the atom. (2) Predict the proper arrangement of the historical models throughout time and support timeline arrangement verbally and in writing. (3) Compare correct timeline of historical models to predicted timeline and discuss the differences. (4) Research a chemist on-line and discuss the contributions of the chemist to the development of the current model of the atom. 1.) Power Point Presentation: Evolution of Atomic Theory and Slides 1-12 of Introduction to the Bohr Model (from Structure Pie Piece) and History of the Atom 2.) Student Handouts: Timeline of models/technological breakthroughs linked to models/ Historical Events (These handouts can be printed as single pages from the History of the Atom Power Point Presentation.) 3.1 Worksheets: Long Science History Lesson I 6.) Other: 1. Divide class into groups (assign ahead of time). 2. Have students complete the Historical Changes in Atomic Models Activity 1 and place on poster board. 3. Display completed activities on poster board around room and have students defend their placement of models and events. 4. Have students complete the Historical Changes in Atomic Models Activity 2 including discussing differences between predicted and actual timeline. History of the Atom, Timeline of models/technological breakthroughs linked to models/ Historical Events (These handouts can be printed as single pages from the History of the Atom Power Point Presentation.) can also be used for comparison and later for review.

2 5. Use Power Point Presentations Evolution of Atomic Theory and Slides 1-12 of Introduction to the Bohr Model (from Structure Pie Piece) to present the changes in models of atom over time 6. HW: Assign the Long Science History Lesson I and give 1-2 weeks for completion. Lesson 2: History of Individuals and Experiments Contributing to Atomic Models Part I (1) Develop a model of the contents inside a closed box and compare to the development of the model of the atom. (2) Discuss how the experiments and the data collected by various scientists contributed to the development of the atom. (3) Make predictions based on the experiments. 1.) Power Point Presentation: 2.) Student Handouts: History of the Atom 3.1 Worksheets: Conservation of Mass, Charge of an Electron, Electron as Particles; Conservation of Mass Key, Charge of an Electron Key, Electron as Particles Key 3.4 Labs: Black Box Lab and Black Box Lab Key 6.) Other: 1. Have students work with lab partner to perform the Black Box Lab. 2. Provide students with answer key to what is in the black boxes and have them compare to their model. Discuss similarities and differences. 3. Using overheads of the Conservation of Mass WS, Charge of an Electron WS, Electron as Particles WS present the experiments of each scientist. 4. After presenting each of the scientist s experiment, have students work with partner to complete each worksheet answering questions and making predictions. Review answers. 5. HW: Assign the History of the Atom Handout to read for homework.

3 Lesson 3: History of Individuals and Experiments Contributing to Atomic Models Part II (1) Perform the Gold Foil Experiment Simulation Lab (Penny Scattering Lab) and analyze the data to predict how data supports the changes Rutherford made to the atomic model. (2) Discuss how the experiments and the data collected by various scientists (specifically Rutherford) contributed to the development of the atom. 1.) Power Point Presentation: 2.) Student Handouts: History of the Atom 3.1 Worksheets: Gold Foil Experiment and Gold Foil Experiment Key History Flashcards 3.4 Labs: Penny Scattering Lab and Penny Scattering Lab Key 5.) Other: 1. Have students work with lab partner to perform the Penny Scattering Lab, which simulates Rutherford s Gold Foil Experiment. 2. Have students propose changes to Thomson s Model of the atom based on the data collected in the lab. Present student models and discuss. 3. HW: Assign the Gold Foil Experiment Worksheet to complete for homework. 4. Students should review for Atomic Scientists Quiz I by using the History Flashcards and History of the Atom Handout.

4 Lesson 4: Basic Atomic Structure (1) Describe the basic structure of the atom including the properties and placement of the protons, neutrons and electrons. (2) Calculate the number of protons, neutrons, and electrons in a neutral atom. (3) Draw Bohr models for atoms and draw conclusions about how elements are arranged in the periodic table. 1.) Power Point Presentation: Introduction to the Bohr Model (Slides 12-20) 2.) Student Handouts: Neutrons, Protons, and Electrons, Atomic Structure, Drawing Bohr Models, and Structure and Size 3.1 Worksheets: Name the Element and Name the Element Key, Bohr Model and Bohr Model Key, Drawing Bohr Models and Drawing Bohr Models Key Structure Flashcards 3.4 Labs: 3.5 Quizzes: Atomic Scientists Quiz I and Atomic Scientists Quiz I Key 4.) Interactive: 5.) Other: one-two periods 1. Administer the Atomic Scientists Quiz I. 2. Use the Introduction to the Bohr Model (Slides 12-20) Power Point Presentation to present the basic structure of the atom. 3. Pass out Neutrons, Protons, and Electrons, Atomic Structure, Drawing Bohr Models, and Structure and Size for students to use as reference during the practice portion of class. 4. Practice calculating p/n/e using the Name the Element Worksheet. Check several in class. 5. Practice drawing Bohr Models using the Bohr Model Worksheet. Check several in class. 6. HW: Assign Drawing Bohr Models Worksheet (relates Bohr Models to periodic table).

5 Lesson 5: Average Atomic Mass and Technology Applications (1) Perform the Determination of Atomic Mass Lab. (2) Calculate the average atomic mass of an element using the periodic table. (3) Discuss how a mass spectrometer works and its uses. (4) Discuss how an electron microscope works and its uses. 1.) Power Point Presentation: Mass Spectroscopy I (slides 1-7) 2.) Student Handouts: Mass Spectroscopy and Electron Microscope 3.1 Worksheets: Average Atomic Mass Worksheet and Average Atomic Mass Worksheet Key Structure Flashcards 3.4 Labs: Determining Atomic Mass Lab and Determining Atomic Mass Lab Key 6.) Other: 1. Have students work with lab partner to perform the Determining Atomic Mass Lab. 2. Use the Mass Spectroscopy I power point presentation to review the results of the experiment. 3. Pass out the Mass Spectroscopy and Electron Microscope handouts and utilize to discuss how the structure of the atom is applied in technology. 4. HW: Assign Average Atomic Mass Worksheet and to study for structure of atom quizzes. 5. Students should review for Name the Element Quiz and Drawing Bohr Models Quiz by using the Structure Flashcards and Bohr Model Generator (if available).

6 Lesson 6: Spectroscopy (1) Identify and describe the characteristics of a wave. (2) Describe the relationship between wavelength and frequency and frequency and energy. (3) Discuss the various forms of electromagnetic radiation and their uses. (4) Define photon. (5) Calculate wavelength, frequency and energy. (6) Define continuous spectrum and bright line emission spectrum. (7) Discuss how wavelength can be calculated using the Rydberg/Balmer equation (perform calculations optional). (8) Propose a hypothesis for the Bohr Model using results of the Balmer equation and the bright line emission spectrum that results when an gaseous element is energized. 1.) Power Point Presentation: The Bohr Atom from Structure Pie Piece and Spectroscopy 2.) Student Handouts: Wave Characteristics, Spectroscopes, and Atomic Spectra Student Activities: 3.1 Worksheets: Atomic Emissions (Calculations) and Atomic Emissions Key, Atomic Energy Levels and Atomic Energy Levels Key 3.4 Labs: 3.) Quizzes: Name the Element Quiz and Drawing Bohr Models Quiz Electron Transistions with Bohr Models and Spectra 4.) Other: one-two periods 1. Administer Name the Element Quiz and Drawing Bohr Models Quiz. 2. Use Wave Characteristics to present characteristics/properties of waves and types of electromagnetic radiation. 3. Use the The Bohr Atom from Structure Pie Piece and Spectroscopy Power Point Presentations to present calculations, spectrums and evidence for the proposal of the Bohr Model. 4. Pass out Atomic Spectra Types Handout for reinforcement. 5. Working in pairs, have students propose how results of the Balmer Equation and Bright Line Emission Spectrum provided Bohr with evidence for the Bohr Model of the atom. Share hypotheses with class.

7 6. Practice calculations using the Atomic Emissions (Calculations) Worksheet in class and check. 7. HW: Finish Atomic Emissions (Calculations) Worksheet and assign Atomic Energy Levels Worksheet. Lesson 7: Spectroscopy Continued (1) Perform the Flame Tests Lab. (2) Describe how the various colors of light are produced when elements are energized. (3) Discuss spectroscopy applications including: Atomic emission Spectrophotomety, plasma applications (neon lights, fluorescent lights, etching, fusion) and LEDs. 1.) Power Point Presentation: CD and DVD Technology 2.) Student Handouts: Emission Spectroscopy I, Emission Spectroscopy II, Plasma The Fourth State of Matter (Applications) 3.1 Worksheets: 3.4 Labs: Flame Test Lab and Flame Test Lab Key 5.) Other: 1. Have students work with lab partner to perform the Flame Test Lab or Gas Discharge Tube Lab (if available tubes are available). 2. Use the CD and DVD Technology Power Point Presentation to introduce applications of emission spectroscopy. Pass out the Emission Spectroscopy I, Emission Spectroscopy II, Plasma The Fourth State of Matter (Applications) Handouts. 3. Form groups (2-3 students) to choose one spectroscopy application from the handouts to become an expert and present a summary including at least one visual aide to the class. Give students 2-3 days to prepare. 4. HW: Finish Flame Test Lab and assign application handouts for reading.

8 Lesson 8: Quantum Mechanical Model of the Atom (1) Perform the Electron Cloud Lab and discuss the probability of finding an electron in the electron cloud of the atom. (2) Discuss the dual nature of light and matter. (3) Optional: Calculate wavelength of an electron using the DeBroglie Equation. (4) Describe the quantum mechanical model of the atom. 1.) Power Point Presentation: The Atom Model After Bohr (from Structure Pie Piece) 2.) Student Handouts: Mechanical Model 3.1 Worksheets: Matter and Waves and Matter and Waves Key (de Broglie Equation) 3.4 Labs: Electron Cloud Lab and Electron Cloud Lab Key a. Other: 1. Have students work with lab partner to perform the Electron Cloud Lab. 2. Use The Atom Model After Bohr Power Point Presentation to present the quantum mechanical model of the atom. 3. Practice Calculating wavelength/mass using the Matter and Waves and Matter and Waves Key (de Broglie Equation) Worksheet and Key. 4. HW: Finish Matter and Waves and Matter and Waves Key (de Broglie Equation) Worksheet.

9 Lesson 9: Electron Configuration Notation (1) Define electron configuration notation and discuss how the periodic table reveals the arrangement of the electrons in the electron cloud. (2) Write electron configuration notation for an element. 1.) Power Point Presentation:? (Not prepared yet) Presentation 2.) Student Handouts: Electron Configuration and Orbital Notations 3.1 Worksheets: Electron Configuration and Electron Configuration Key 3.4 Labs: b. Other: 1. Have one half of student groups present Spectroscopy Applications. 2. Use? Power Point Presentation to present the electron configuration notation. 3. Use Electron Configuration and Orbital Notations Handout for reinforcement while students practice writing electron configuration notation using Electron Configuration Notation Worksheet in class. 4. HW: Finish Electron Configuration Notation Worksheet.

10 Lesson 10: Orbital Notation (1) Define orbital configuration notation and discuss how the periodic table reveals the arrangement of the electrons in the electron cloud. (2) Write orbital notation for an element. 1.) Power Point Presentation:? Power Point Presentation 2.) Student Handouts: Electron Configuration and Orbital Notations 3.1 Worksheets: Orbital Notation Worksheet and Key and Electron Configuration Bingo Electron Configuration Bingo 3.4 Labs: a. Other: 1. Have second half of student groups present Spectroscopy Applications. 2. Check Electron Configuration Notation Worksheet in class. 3. Use? Power Point Presentation to present orbital notation. 4. Use Orbital Notation Handout for reinforcement while students practice writing orbital notation using Orbital Notation Worksheet in class. 5. HW: Finish Orbital Notation Worksheet and have students fill in half of Atomic Bingo templates with element symbols and half the templates with electron configuration notations for various elements. Study for Electron Configuration Quiz.

11 Lesson 11: Review Quantum Mechanical Model of the Atom and Notations (1) Write electron configuration notation and orbital notation for an element. 1.) Power Point Presentation: 2.) Student Handouts: 3.1 Worksheets: Electron Configuration Bingo 3.4 Labs: Electron Configuration Notation Quiz and Electron Configuration Notation Key 6.) Other: 1. Practice writing electron configuration notation and orbital notation using prepared Atomic Bingo Templates. 2. If class has mastered notations, administer Electron Configuration Notation Quiz and check in class. 3. HW: Study for test

12 Lesson 12: Unit Test 1.) Power Point Presentation: 2.) Student Handouts: 3.1 Worksheets: 3.4 Labs: Section Test 6.) Other: 1. Administer Section Test. 2. HW: Finish Long Science History Lesson I