worksheet 3 - CH301 Fall 2010 Worksheet 3: Electron...

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CH301 Fall 2010 Worksheet 3: Electron Configurations and Periodic Trends 1. Match the following elements with their corresponding electron configurations 2. Write the electron configuration of arsenic (As) in long notation and in short (noble gas) notation. 3. Write the electron configuration of a divalent cobalt cation (Co 2+ ) in long and in short notation. 4. Write the electron configuration of a monovalent astatine anion (At - ) in long and in short notation. 5. Write the electron configuration of ununoctium (Uuo), atomic number 118, in long and in short notation. 6. Although it can’t be found on any periodic table, what would element 120’s electron configuration be, in long and short notation? 7. Which ground state element corresponds to the following electron configurations? a. [Rn] 7s 2 5f 14 6d 5 b. [Ne] 3s 2 3p 2 c. [Xe] 6s 2 4f 14 5d 2 d. [Kr] 5s 1 3f 14 4d 10 (note: this might not make sense until Thursday’s lecture) e. [Ar] 4s 1 3f 14 4d 5 8. Consider the element calcium (Ca). What is the effective nuclear charge experience by electrons in the following of Ca’s subshells?
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This note was uploaded on 10/10/2011 for the course CH 50995 taught by Professor Laude during the Fall '10 term at University of Texas.

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worksheet 3 - CH301 Fall 2010 Worksheet 3: Electron...

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