Which of the following electronic configurations correctly represents an element in period 3 of the
CHEMISTRY
WAEC 2009
Which of the following electronic configurations correctly represents an element in period 3 of the periodic table?
- A. 1s22s22p2
- B. 1s22s22p6
- C. 1s22s22p63s23p4
- D. 1s22s22p63s23p64s1
Correct Answer: C. 1s22s22p63s23p4
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