Honors Unit 6 Atomic Structure Miss Adams Honors Chemistry 1 Name: 1
Homework #1: Frequency, Wavelength and the Speed of Light Show all of your work for the problems, including the initial formula, substitution and solution: 1. What is the wavelength in m of electromagnetic radiation having a frequency of 3.44 x 10 9 Hz? Which type of radiation does this correspond with? 2. What is the frequency in Hz of electromagnetic radiation having a wavelength of 4.90 x 10 2 nm? Which type of radiation does this correspond with? 3. If the frequency of a wave is 7.8 x10 3 khz, what is its wavelength in m? In nm? 4. What is the frequency in Hz and MHz of a laser having a wavelength of 780 nm? 5. A radio station broadcasts at a frequency of 94.7 MHz. What is the wavelength in m? 2
Homework #2: Frequency, Wavelength and Energy Show all of your work for the problems, including the initial formula, substitution and solution: 1. What is the energy of a photon from the violet portion of the rainbow if it has a frequency of 7.23 x 10 14 Hz? 2. What is the energy of a photon with a frequency of 6.32 x 10 20 Hz? 3. What is the energy of a photon with a wavelength of 1.18 x 10-8 m? 4. If the energy of a photon of light is 3.75x10-12 J, what is the wavelength in nm of this sample of light? 5. A radio station broadcasts at a frequency of 104.5 MHz. What is the energy of a photon of the station s electromagnetic signal? 3
Homework Worksheet #3: Electron Configurations Write the full electron configuration for each of the following elements: 1. C 2. Ca 3. Ni 4. K 5. Se 6. Fe 7. Cl 8. Ne 9. Zr 10. Dy 11. Pr 4
Homework Worksheet #4: Electron Configurations Write the Noble Gas (short-hand) configuration for each of the following elements: 1. fluorine 11. lithium 2. phosphorus 12. zinc 3. calcium 13. carbon 4. nitrogen 14. iodine 5. iron 15. oxygen 6. argon 16. barium 7. potassium 17. lead 8. aluminum 9. magnesium 10. sulfur 5
HW #5: Electron Configurations I. Write both the full electron configuration for each of the following elements as well as the noble gas (abbreviated) configuration. 1. Beryllium: OR 2. Nitrogen : OR 3. Manganese : OR 4. Tin : OR 5. Tungsten: OR II. Identify the element for each of the following electron configurations: 1. 1s 2 2s 2 2p 6 : 2. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 9 : 3. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 5 : 4. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2 4f 10 : III. Determine whether the following electron configurations are valid or invalid, and if invalid, correct it. 1. 1s 2 2s 2 2p 2 3s 2 : 2. 1s 2 2s 2 2p 6 3s 2 3p 6 3d 1 : 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 : 6
HW #6 - Electron Configuration and Orbital Diagrams Directions: Please fill in the electron configuration for the following elements and then draw the orbital diagram configuration in the appropriate boxes. F Electron Configuration Mg Electron Configuration Orbital Diagram Configuration Orbital Diagram Configuration B Electron Configuration He Electron Configuration Orbital Diagram Configuration Orbital Diagram Configuration Zn Electron Configuration I Electron Configuration Orbital Diagram Configuration Orbital Diagram Configuration 7
Homework Worksheet #7: Electron Configurations Write both the full electron configuration and draw the orbital configuration for each of the following elements: 1. Si 2. Sm 3. Al 4. O 5. Mn 8
Homework Worksheet #8: Electron Configurations Write the full electron configurations for the following: 1) lithium 2) oxygen 3) calcium 4) titanium 5) erbium Draw the orbital diagrams for the following (you can use short-hand if you like with the arrows, or just write out all of the arrows) 1) lithium 2) oxygen 3) calcium 4) titanium 5) rubidium 6) arsenic Write the short-hand electron configurations for the following: 1) selenium 2) nitrogen 3) chlorine 4) iron 5) francium 6) polonium 9
Electron Configuration Review (pg. 10-12) Homework #9 PART A FULL ELECTRON CONFIGURATION Use the patterns within the periodic table to write spdf electron configurations for the following atoms. Symbol # e - Electron Configuration 1. Hg 2. P 3. V 4. Ge 5. Y 6. N 10
PART B ORBITAL NOTATION Use the patterns within the periodic table to write orbital notations (use arrows) for the following atoms. Symbol # e - Orbital Notation 7. Mg 8. P 9. V 10. Ge 11. Kr 12. N 11
PART C SHORTHAND ELECTRON CONFIGURATION Use the patterns within the periodic table to write the shorthand electron configurations for the following elements. Symbol # e - Shorthand Electron Configuration 13. Ca 14. Pb 15. F 16. U PART D RULES OF ELECTRON CONFIGURATIONS Which of the following rules is being violated in each electron configuration below? Explain your answer for each. Hund s Rule, Pauli Exclusion Principle, Aufbau Principle 17. 1s 2s 2p _ _ 18. 1s 2s 2p 3s 3p _ 19. 1s 2s 2p 3s 3p 20. 1s 2s 2p 3s 3p 3d 12
HW #10 - Periodic Trends Practice (pg. 13-14) Directions: For each group, identify the element which fits the description. Each element will only be used ONCE for a description in a group. Go down the page in order. Ba Cl Li Zn Xe Largest atomic radius of all the above elements Has a full s and p sublevel Ends its electron configuration in the d block Alkali Metal Smallest atomic radius of all the above elements --------------------------------------------------------------------------------------------------------------------- F B Ge Cs Fe Ca Lowest ionization energy of all the above elements Transition metal element Metalloid Highest ionization energy of all the above elements Alkaline Earth metal element Electron configuration is 1s 2 2s 2 2p 1 --------------------------------------------------------------------------------------------------------------------- Forms a +3 ion O Al I F Cf Mg Ends its configuration in the f sublevel Largest atomic radius of all the halogens above Smallest atomic radius of all the halogens above Non-metal which forms a -2 ion 13
Periodic Trends Practice (cont.) Rb I Te Sr Rank the elements above from smallest to largest atomic radius: ------------------------------------------------------------------------------------------------------------------- Be Ba Ca Sr Mg Rank the elements above from smallest to largest ionization energy: -------------------------------------------------------------------------------------------------------------------- C Sr Mg Cs Be Rank the elements above from least to most electronegative: -------------------------------------------------------------------------------------------------------------------- B In F N Rank the elements above from lowest to highest electron affinity: -------------------------------------------------------------------------------------------------------------------- What are the names for the following groups or areas on the periodic table? Group 1 = Group 2 = Groups 3-12 = Group 17 = Group 18 = 14