What is the correct order of melting temperat | vedclass

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(C) The elements belonging to group $14$ are $C$, $Si$, $Ge$, $Sn$, and $Pb$. $C$ and $Si$ are non-metals, $Ge$ is a metalloid, while $Sn$ and $Pb$ ar

Vedclass · Accepted Answer

$C > Si > Ge$

Vedclass · Answer

(C) The elements belonging to group $14$ are $C$, $Si$, $Ge$, $Sn$, and $Pb$. $C$ and $Si$ are non-metals, $Ge$ is a metalloid, while $Sn$ and $Pb$ are metals. These elements form covalent networks in their solid state. The melting point depends on the strength of the interatomic forces (covalent or metallic bonds). As we move down the group, the atomic size increases, which leads to a decrease in the strength of the interatomic forces. Therefore, the melting point decreases from $C$ to $Pb$. Thus, the correct order of melting temperature is $C > Si > Ge$.

What is the correct order of melting temperature of $C$, $Si$, $Ge$?

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