AIIMS2002Chemistry-Periodic Table
AIIMS 2002 Chemistry Electronic Configuration MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Which of the following does not have valence electron in 3d-subshell?
A
Fe (III)
B
Cr (I)
C
Mn (II)
D
P (0)
Correct Answer
Option D
Detailed Explanation
Phosphorus (P) has electronic configuration 1s2, 2s2, 2p6, 3s2, 3p3.
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