22 Ti
Titanium
21 Sc
Scandium
23 V
Vanadium
24 Cr
Chromium
25 Mn
Manganese
26 Fe
Iron
27 Co
Cobalt
28 Ni
Nickel
29 Cu
Copper
30 Zn
Zinc
39 Y
Yttrium
40 Zr
Zirconium
41 Nb
Niobium
42 Mo
Molybdenum
43 Tc
Technetium
44 Ru
Ruthenium
45 Rh
Rhodium
46 Pd
Palladium
47 Ag
Silver
48 Cd
Cadmium
72 Hf
Hafnium
73 Ta
Tantalum
74 W
Tungsten
75 Re
Rhenium