An element Y has the electronic configuration 1s22s22p6623p4. To what period does it belong in...
CHEMISTRY
WAEC 2002
An element Y has the electronic configuration 1s22s22p6623p4. To what period does it belong in the periodic table?
- A. 3
- B. 4
- C. 5
- D. 6
Correct Answer: A. 3
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