ELECTROMAGNETIC SPECTRUM AND WAVE PROPERTIES 电磁频谱和波的性质.doc

Name: _Period: _Chapter 5: Electrons in an AtomBig Picture Idea: An elements electronic structure determines its chemical and physical properties and therefore its placement on the periodic table.Big Picture Question: How does an elements electronic structure affect its properties?o Suggested ResourcesHomework AssignmentsClasswork Assignments Laboratory ActivitiesFormative AssessmentsTextbook pages: Chapter 5Key Terms:1. c2. EM spectrum 3. spectrum of visible light4. Bohr Model5. crest6. trough7. wavelength (lambda)8. amplitude9. period10. frequency11. Hertz12. Quanta13. photon14. wave particle duality15. photoelectric effect16. Heisenberg uncertainty principle17. Aufbau principle18. spectrometer/ prism19. Pauli exclusion principle20. Quantum-mechanical model21. energy levels22. orbital23. electron density24. Hunds RuleELECTROMAGNETIC SPECTRUM AND WAVE PROPERTIES OF LIGHTWAVE VOCABULARY:Amplitude:Wavelength ():Frequency ():Energy (E):Speed (c):Graphing Direct and Inverse ProportionsDirect Proportion: the more I study, the higher my gradeInverse Proportion: the more I shave, the shorter my beard getsRelationships Between Energy, Wavelength and Frequency of Waves:Energy and Frequency:Wavelength and Frequency:Energy and Wavelength:Problems: If the wavelength only of a wave doubles, and its energy and speed dont change, what will happen to its frequency?If the frequency of a wave triples, what happens to the energy needed for the wave?(assume the speed and wavelength dont change)A student modifies the wavelength of a wave by changing the energy. If the energy is cut in half, what must have happened to the wavelength?How can doubling the energy of a wave affect the frequency? (assume the wavelength and speed stay the same)How can doubling the wavelength of a wave affect the energy? (assume the frequency and speed stay the same) Arrange the following forms of electromagnetic radiation in order of increasing wavelength, frequency, energy and speed: gamma rays, radio waves, yellow light, blue lightwavelength:_ _ _ _ frequency:_ _ _ _energy: _ _ _ _speed:_ _ _ _THE PATH OF ELECTRONS & SPECTROSCOPYBohrs Atom:Drawing Bohr Atoms VocabularyGround state:Excited state:Quantum leap:Photon:Atomic emission spectrum:THE QUANTUM MECHANICAL MODEL OF THE ATOMHeisenbergs Uncertainty Principle:QUANTUM NUMBERS: (address for electrons)a. Energy Levelb. Sublevelc. Orbitald. SpinELECTRON ARRANGEMENTORBITALS:How are the electrons distributed in each energy level?ENERGY LEVELSUB-LEVELSORBITALSELECTRONSTOTAL ELECTRONS1s 12sp 1 33spd 1 3 54spdf 1 3 5 75, 6, 7spdf 1 3 5 7ORBITAL NOTATION and ELECTRON CONFIGURATION:THREE RULES:Aufbau Principle:Hunds Rule:Pauli Exclusion Principle:ElementBohr DiagramOrbital Filling DiagramElectron ConfigurationDot DiagramHydrogenHeliumElementBohr DiagramOrbital Filling DiagramElectron ConfigurationDot DiagramLithiumCarbonNeonSodiumSulfurChlorineArgonElementBohr DiagramOrbital Filling DiagramElectron ConfigurationDot DiagramPotassiumRULES FOR ELECTRON FILLINGAufbau Principle:Hunds Rule: Pauli Exclusion Principle:ELECTRON ARRANGEMENT USING THE DIAGONAL RULE (Aufbau Principle):TRY:ELEMENTATOMIC #ELECTRON CONFIGURATIONDOT DIAGRAMmanganese25sulfur16chromium24bromine35strontium38tin50iodine53barium56ABBREVIATED ELECTRON CONFIGURATIONELEMENTELECTRON CONFIGURATIONNOBLE GAS ABBREVIATIONDOT DIAGRAMCalciumPhosphorusIronSelenium (Se)Arsenic(As)Rubidium(Rb)Platinum(Pt)Cadmium(Cd)EXCEPTIONS:CuAgAuCrReading Activity: Electrons in Atoms (p. 128-133)5.1 Revising the Atomic ModelAs you read Lesson 5.1, use the Frayer Model below. Place the term quantum mechanicalmodel in the center of the model. Use the details you place in the appropriate quadrant tohelp you understand the vocabulary term.Facts/characteristicsDefinition in your own wordsNonexamplesExamples2.Complete the table about atomic models and the scientists who developed them. ScientistModel of AtomDaltonThomsonRutherfordBohr3.Is the following sentence true or false? The electrons in an atom can exist betweenenergy levels.4.What are the fixed energies of electrons called? _5.Circle the letter of the term that completes the sentence correctly. A quantum of energyis the amount of energy required toa. place an electron in an energy level.b. maintain an electron in its present energy level.c. move an electron from its present energy level to a higher one.6.In general, the higher the electron is on the energy ladder, the it is from the nucleus.7.What is the difference between the previous models of the atom and the modernquantum mechanical model?8.Is the following sentence true or false? The quantum mechanical model of theatom estimates the probability of finding an electron in a certain position.9.A(n) is often thought of as a region of space in which there is ahigh probability of finding an electron.10.Circle the letter of the term that is used to label the energy levels of electrons.a. atomic orbitalsc. quantumb. quantum mechanical numbersd. principal quantum numbers (n)11.The letter is used to denote a spherical orbital.12.Label each diagram below px, py, or pz.p orbitals13.Use the diagram above. Describe how the px, py, and pz orbitals are similar.14.Describe how the px, py, and pz orbitals are different.15.Circle the letter of the formula for the maximum number of electrons that can occupy aprincipal energy level. Use n for the principal quantum number.a. 2n2b. n2 c. 2n d. nWaves/Electromagnetic SpectrumName:Date:Period: 1. Arrange the following in order of increasing wavelength (microwaves, gamma ray, visible light):_ _2. Arrange the following in order of increasing frequency (microwaves, gamma ray, visible light):_ _3. Fill in the correct terms in the paragraph below:If an electron receives the correct _ of energy, it will jump from the _ to the _. When it returns, it gives