A) \[_{24}Cr,\,Br\]
B) \[_{21}Sc,\,Hg\]
C) \[_{84}PO,\,Fr\]
D) \[_{26}Fe,\,Zn\]
Correct Answer: B
Solution :
\[\Rightarrow \] d-block element \[{{x}_{1}},\,{{x}_{2}},\,{{x}_{3}}.....,{{x}_{n}}\] Liquid metal (at 303 K)
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