January 2013 Chemistry Regents #51key

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Questions 1-10 Questions 11-20 Questions 21-30 Questions 31-40 Questions 41-50

Questions 51 Questions 52-54 Questions 55-58 Questions 59-61 Questions 62-65 Questions 66-69

Questions 70-72 Questions 73-76 Questions 77-79 Questions 80-82 Questions 83-85

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Question 51

 

 

Base your answers to questions 51 on the information below.

51 Draw a Lewis electron-dot diagram for an atom of silicon. [1]

The first response is a hybridized form of Si, which occurs when bonding. Should not be a correct answer.

The lower answer is technically an excited for based on box and arrow configurations. Should not be a correct answer.

Since most students would draw this correctly, the key does not allow for other responses, and might have been marked incorrect.

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Questions 1-10 Questions 11-20 Questions 21-30 Questions 31-40 Questions 41-50

Questions 51 Questions 52-54 Questions 55-58 Questions 59-61 Questions 62-65 Questions 66-69

Questions 70-72 Questions 73-76 Questions 77-79 Questions 80-82 Questions 83-85

 

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