Chemistryhard · Past Paper
The electronic configuration of a halogen is usually:
A\(ns^2 np^5\)
B\(ns^2 np^6\)
C\(ns^2 np^4\)
D\(ns^1\)
✓ Correct Answer: A — \(ns^2 np^5\)
Halogens have 7 valence electrons, filling the s-orbital and 5 electrons in the p-orbital.
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