Which of the following is a soft metal?

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(D) Among the given transition metals,$Cr$ (Chromium),$V$ (Vanadium),and $Co$ (Cobalt) are hard metals with high melting points due to strong metallic

Vedclass · Accepted Answer

$Cd$

Vedclass · Answer

(D) Among the given transition metals,$Cr$ (Chromium),$V$ (Vanadium),and $Co$ (Cobalt) are hard metals with high melting points due to strong metallic bonding involving $d$-electrons.$Cd$ (Cadmium) belongs to group $12$ (along with $Zn$ and $Hg$). These elements have a fully filled $d^{10}$ configuration,which results in weaker metallic bonding compared to other transition metals.Therefore,$Cd$ is relatively soft compared to $Cr$,$V$,and $Co$.

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