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HONORS CHEMISTRY SCHEDULE
Unit 4: Electronic Structure of Atoms
Assignments*
Due Date
Topic
Outline 6.1-6.2; Page 230 (2-10 Even)
Energy: Waves and Photons
Outline 6.3; Page 231 (12-18 Even)
Line Spectra and the Bohr Model
Outline 6.5-6.6; Page 232 (42, 46)
Quantum Mechanics and Orbitals
Outline 6.7-6.8; Page 232 (52-58 Even)
Electron Configurations
Outline 7.2-7.3; Page 266 (4,6,8, 16, 18, 20)
Periodic Trends: Nuclear Charge, Atomic Size
Outline 7.4-7.5; Page 267 (32, 34, 38, 42)
Periodic Trends: Ionization Energy, Electron
Affinities
Mini-Lab: Glowing Stars
Inv. #8: Atomic Structure “Bohr’s Model”
Inv. #9: Building A Quantum Periodic Table
Discussions
Mini-Labs Calculations
Review for Test: Summary Problem
Test Date:
*All assignments are checked on or after the due date; however, all work will be collected on the test day in a purple portfolio.
NEW CONCEPTS/STANDARDS
After studying these chapters you should be able to:
1. master the California State Standard 1c,d,g,h,i,j
2. understand the relationship between light and energy.
3. recognize that light is a form of energy.
4. explain how experimental evidence provides the basis for a detailed model of the atom.
5. cite evidence to support that atoms can exist only in certain, specific energy states.
6. recognize the relationship between the periodic table and quantum theory.
7. understand that the general trends of atomic properties of the elements are related to location on the periodic table
8. write electron configurations for the first 20 elements
9. relate ionization energy to electron configuration.
SUMMARY PROBLEM
Consider the element vanadium (Z=23)
a) There is a line in the vanadium spectrum at 318.5nm.
i. In what region of the spectrum (ultraviolet, visible, or infrared) is the line found?
ii. What is the frequency of the line?
iii. What is the energy difference between the two levels responsible for this line in kJ per mole?
iv. Give the electron configuration of the V atom; the V3+ ion.
v. Give the orbital diagram (beyond argon) for the V atom; the V3+ ion.
vi. How many unpaired electrons are in the V atom? In the V3+ ion?
vii. How many electrons in V have l = 1 quantum number?
viii. How many electrons in V3+ have l = 2 quantum number?
ix. Rank V, V2+, and V3+ in order of increasing size.