Chemistrymedium · Past Paper
What is the electronic configuration of Phosphorus (Z=15)?
A2, 8, 3
B2, 8, 5
C2, 5, 8
D2, 8, 8
✓ Correct Answer: B — 2, 8, 5
Phosphorus has 15 electrons, distributed as 2 in the K-shell, 8 in the L-shell, and 5 in the M-shell.
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