They have high enthalpies of atomisation which
are shown in Fig 4 2 The maxima at about
the middle of each series indicate that one
unpaired electron per d orbital is particularly
Lattice Structures of Transition Metals
Sc
Ti
V
Cr
Mn
Fe
Co
Ni
Cu
Zn
hcp
hcp
bcc
bcc
X
bcc
ccp
ccp
ccp
X
(bcc)
(bcc)
(bcc, ccp)
(hcp)
(hcp)
(hcp)
Y
Zr
Nb
Mo
Tc
Ru
Rh
Pd
Ag
Cd
hcp
hcp
bcc
bcc
hcp
hcp
ccp
ccp
ccp
X
(bcc)
(bcc)
(hcp)
La
Hf
Ta
W
Re
Os
Ir
Pt
Au
Hg
hcp
hcp
bcc
bcc
hcp
hcp
ccp
ccp
ccp
X
(ccp,bcc)
(bcc)
Rationalised 2023-24
93
The d- and f- Block Elements
favourable for strong interatomic interaction