The melting points of Cu, Ag and Au follow the order

Question

The melting points of Cu, Ag and Au follow the order (A) Cu > Ag > Au (B) Cu > Au > Ag (C) Au > Ag > Cu (D) Ag > Au > Cu

Tardigrade Admin · Accepted Answer

All have d 10 configuration. There is only 1 e -for metallic bonding. Now size of atoms or kernels increases down the group. Hence, metallic bonding weakness due to less attraction of electrons involved in metallic bonding. Ag < Au < Cu

Q. The melting points of $C u$ , $A g$ and $A u$ follow the order

$C u > A g > A u$

$C u > A u > A g$

$A u > A g > C u$

$A g > A u > C u$

All have $d_{10}$ configuration. There is only $1 e^{-}$ for metallic bonding. Now size of atoms or kernels increases down the group. Hence, metallic bonding weakness due to less attraction of electrons involved in metallic bonding. $A g < A u < C u$

Q. The melting points of Cu, Ag and Au follow the order

Cu>Ag>Au

Cu>Au>Ag

Au>Ag>Cu

Ag>Au>Cu