Question

Which of the following transition elements exhibits the lowest melting point and boiling point?

• A. $Cr$
• B. $Hg$
• C. $Cu$
• D. $Au$

Answer 1

Answer: (B)

$Hg$ as there is no unpaired electron so M.P. and B.P. are low. $Hg$ is therefore liquid at room temperature with M.P. only $234K$ .