AIIMS2001Chemistry-Electronic Configuration
AIIMS 2001 Chemistry Excited States MCQ Question
Type: MCQ-conceptual-Medium-Class 11
The electronic configuration 1s² 2s² 2p⁵ 3s¹ shows
A
ground state of fluorine atom
B
excited state of fluorine atom
C
excited state of neon atom
D
excited state of ion O₂⁻
Correct Answer
Option C
Detailed Explanation
The configuration shows an electron in the 3s orbital, indicating an excited state of fluorine, which normally has a configuration ending in 2p⁵.
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