Question

Which transition metal has the lowest melting point?

• A. $Zn$
• B. $Cr$
• C. $Ti$
• D. $Ni$
• E. $Co$

Answer 1

Answer: (A)

$Zn$

The melting and boiling points of transition elements are generally high. Across the period, it first increases , reaches a maximum and then decreases. Due to formation of very strong metallic bonds which in turn depend on no. of unpaired electrons; transition metals have high melting and boiling points.

Zinc (Zn) has lowest melting point in 3d series because of absence of d-electrons.