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

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

The d-and f-Block Elements

Solution:

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. $Ag < Au < Cu$