Refer to the graph for trends in M.P. of transition elements of 3d, 4d and 5d series.

 

 

 

 

 

 

 

 

A metal having high boiling point :

In general, the strength of the metallic link between an element's atoms determines its high melting and boiling points. The substance's boiling points are high in enthalpy of atomization.
These two's higher values should encourage more noble reactions from them.