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

(N/A) Metallic properties: All transition elements exhibit typical metallic properties such as $(i)$ high tensile strength,$(ii)$ ductility,$(iii)$ malleability,and $(iv)$ high thermal and electrical conductivity.
$(b)$ Metallic structures: The lattice structures of transition elements are given in the table below:

Element	Structure
$Sc$	$hcp, bcc$
$Ti$	$hcp, bcc$
$V$	$bcc$
$Cr$	$bcc, ccp$
$Mn$	$X, bcc, ccp$
$Fe$	$bcc, hcp$
$Co$	$ccp, hcp$
$Ni$	$ccp$
$Cu$	$ccp$
$Zn$	$X, hcp$
$Y$	$hcp, bcc$
$Zr$	$hcp, bcc$
$Nb$	$bcc$
$Mo$	$bcc$
$Tc$	$hcp$
$Ru$	$hcp$
$Rh$	$ccp$
$Pd$	$ccp$
$Ag$	$ccp$
$Cd$	$X, hcp$
$La$	$hcp, ccp, bcc$
$Hf$	$hcp, bcc$
$Ta$	$bcc$
$W$	$bcc$
$Re$	$hcp$
$Os$	$hcp$
$Ir$	$ccp$
$Pt$	$ccp$
$Au$	$ccp$
$Hg$	$X$

Note: $bcc = \text{body-centered cubic}$,$hcp = \text{hexagonal close-packed}$,$ccp = \text{cubic close-packed}$,$X = \text{a specific metal structure}$. Except for $Zn, Cd, Hg, Mn$,transition elements exhibit one or more specific structures at room temperature.