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Past Exam for CHEM 1035 - General Chemistry with Amateis at Virginia Tech (VT)

Exam Information

Material Type:Exam 3
Professor:Amateis
Class:CHEM 1035 - General Chemistry
Subject:Chemistry
University:Virginia Polytechnic Institute And State University
Term:Fall 2006
Keywords:
  • Polar Bonds
  • Electronegativity
  • Tetrahedron
  • Sigma Bonds
  • Arrangement
  • Endothermic
  • Bond Energy
  • Lattice Energy
  • Proportionality
  • Lewis Structure
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Sample Document Text

Chemistry 1035 Test 3 November 2, 2006 THIS IS FORM A[FORM B #s in ( )) Name ___________ _ Choose the single best answer to each question. ALL LEWIS STRUCTURES CAN BE FOUND AT THE END OF THIS TEST L(6) Which of the elements listed below has the greatest electronegativity? L Pb 3.. Mg 4 .. Ga 5. Ba Answer: 2. P The electronegativity trend in the periodic table is: -+-+-+ -+-+-+ -+-+-+ Increases t t Mg P Increases t Ga t t Pb t Ba Ba, in the far left lower comer, has the lowest electTOnegativity value, and P, in the far right upper comer, has the highest electronegativity value. 2{3) The number of valence electrons in an atom of chlorine is L two 2. five 3. seven 4. seventeen Answer: 3. seven The valence electrons for main group elements are the electrons in the energy level with the largest "n" value. The number of valence electrons can be obtained fTom the Group #. Chlorine is in Group 17 so it has 7 valence electrons. The electron configuration of CI is [Ne )3s...

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