1.

Correct statement is       [BHU 2003]

A.                 \[K=4{{s}^{1}},\,\,Cr=3{{d}^{4}}4{{s}^{2}},\,\,Cu=3{{d}^{10}}4{{s}^{2}}\]
B.                 \[K=4{{s}^{2}},\,\,Cr=3{{d}^{4}}4{{s}^{2}},\,\,Cu=3{{d}^{10}}4{{s}^{2}}\]
C.                 \[K=4{{s}^{2}},\,\,Cr=3{{d}^{5}}4{{s}^{1}},\,\,Cu=3{{d}^{10}}4{{s}^{2}}\]
D.                 \[K=4{{s}^{1}},\,\,Cr=3{{d}^{5}}4{{s}^{1}},\,\,Cu=3{{d}^{10}}4{{s}^{1}}\]
Answer» E.


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