If the electron configuration of a element is 1s 2 2s 2 2P 5 ,

CHEMISTRY
JAMB 2007

If the electron configuration of a element is 1s2 2s22P5, how many unpaired electron are there?

  • A. 2
  • B. 8
  • C. 1
  • D. 4

Correct Answer: C. 1



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