The maximum and minimum melting points (m.p.) | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In the $1^{st}$ transition series ($3d$ series),the maximum melting point is observed for $Cr$ $(Z=24)$ due to the stable $d^5$ configuration,whic

Vedclass · Accepted Answer

$Cr$ and $Zn$

Vedclass · Answer

(A) In the $1^{st}$ transition series ($3d$ series),the maximum melting point is observed for $Cr$ $(Z=24)$ due to the stable $d^5$ configuration,which leads to strong metallic bonding. The minimum melting point is observed for $Zn$ $(Z=30)$ because it has a completely filled $d^{10}$ configuration,resulting in weak metallic bonding.In the $2^{nd}$ transition series ($4d$ series),the maximum melting point is observed for $Mo$ $(Z=42)$ due to the stable $d^5$ configuration. The minimum melting point is observed for $Cd$ $(Z=48)$ due to the stable $d^{10}$ configuration.Therefore,the maximum and minimum melting points for the $1^{st}$ series are $Cr$ and $Zn$,and for the $2^{nd}$ series are $Mo$ and $Cd$.

The maximum and minimum melting points $(m.p.)$ of the $1^{st}$ transition series and $2^{nd}$ transition series respectively are obtained with:

Similar Questions

Which of the following is arranged in order of increasing melting point?

Which of the following transition metals has the lowest boiling point $(B.P.)$?

Which of the following elements has the highest density?

Describe the $(a)$ metallic properties and $(b)$ lattice structures of transition elements.

Which of the following elements has the highest melting point?

Vedclass Test Series

Exam Paper Generator

Online Exam Module