A) \[Cr\]
B) \[Mn\]
C) \[Sn\]
D) \[Cu~\]
Correct Answer: C
Solution :
: Transition elements may be defined as the elements in which last electron enters in d- subshell of their penultimate shell.\[Cr\] | \[Mn\] | \[Sn\] | \[Cu\] |
\[3{{d}^{5}}4{{s}^{1}}\] | \[3{{d}^{5}}4{{s}^{2}}\] | \[5{{s}^{2}}5{{p}^{2}}\] | \[3{{s}^{10}}4{{s}^{1}}\] |
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