MCQ
What is the electronic configuration of phosphorus?
- ✓$2, 8, 5$
- B$2, 8, 4$
- C$2, 8, 6$
- D$2, 8, 3$
✓
Answer
Correct option: A.
$2, 8, 5$
Phosphorus has atomic no$-17.$ so its $k$ shell has $2$ electron, $L$ shell has $8$ electron and $M$ shell has $5$ electron.
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