Electron configuration of an atom is 2, 8, 7. Which of the following elements would it be chemically similar ? 

A) Nitrogen (Z = 7) 

B) Fluorine (Z = 9) 

C) Phosphorous (Z = 15 ) 

D) Argon (Z = 18)

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1 Answers

B) Fluorine (Z = 9)

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