The electronic configuration of an element is 1S2 2S2 2P6 3S2 3P3. How many unpaired...
CHEMISTRY
JAMB 2020
The electronic configuration of an element is 1S2 2S2 2P6 3S2 3P3. How many unpaired electrons are there in the element?
- A. 5
- B. 4
- C. 3
- D. 2
Correct Answer: C. 3
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