III.B group
≡
Scandium
Sc
21
Yttrium
Y
39
Lanthanum
La
57
Cerium
Ce
58
Praseodymium
Pr
59
Neodymium
Nd
60
Promethium
Pm
61
Samarium
Sm
62
Europium
Eu
63
Gadolinium
Gd
64
Terbium
Tb
65
Dysprosium
Dy
66
Holmium
Ho
67
Erbium
Er
68
Thulium
Tm
69
Ytterbium
Yb
70
Lutetium
Lu
71
Actinium
Ac
89
Neptunium
Np
93
Plutonium
Pu
94
Americium
Am
95
Curium
Cm
96
Berkelium
Bk
97
Californium
Cf
98
Einsteinium
Es
99
Fermium
Fm
100
Mendelevium
Md
101
Nobelium
No
102
Lawrencium
Lr
103
Rutherfordium
Rf
104