eng-spring07-q207s

eng-spring07-q207s - CHEM 151: Quiz 7 Show your work for...

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CHEM 151: Quiz 7 NAME __________ KEY _________ ID #_______________ Show your work for full credit Eng Q207 1. (2 pts) TRUE or FALSE . The title of Chapter 8 is “Periodic Trends.” False. Anyone who read or even skimmed the title would know it was very long – “Atomic Electron Configurations and Chemical Periodicity.” 2. (6 pts total) For the 4p orbitals the n , l and m l quantum numbers are n = 4, l = 1, m l = -1 n = 4, l = 1, m l = 0 n = 4, l = 1, m l = 1 i. (2 pts) Draw the 4p x orbital. ii. (2 pts) What are the other 4p orbitals called? 4p y and 4p z iii. (1 pt) How many planar nodes (or nodal surfaces) does a 4p orbital have? ONE. iv. (1 pt) The number of spherical (or radial) nodes is n – l – 1 . How many spherical nodes does a 3s orbital (NOT 4p ) have? TWO. (3 – 0 – 1) 3. (5 pts total) Write the electronic configurations using the noble gas notation for: i. (2 pts) S [Ne] 3s 2 3p 4 (Atomic # 16) ii. (1 pt) S 2- [Ne] 3s 2 3p 6 ( [Ar] is ok ) iii. (2 pts) Mo [Kr] 5s
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eng-spring07-q207s - CHEM 151: Quiz 7 Show your work for...

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