mium lanthanum
cerium
67 57
58
praseodymium neodymium
59
60
promethium
61
samarium
62
europium
63
gadolinium
64
terbium
65
dysprosium
66
holmi
67
HoLa Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho
4.93138.91 einium actinium
99 89
140.12
140.91
144.24
[145]
150.36
151.96
157.25
158.93
162.50
thorium
protactinium
uranium
neptunium
plutonium
americium
curium
berkelium
californium
90
91
92
EsAc Th Pa
52] [227]
titanium
22
231.04
238.03
vanadium
chromium
manganese
23
Ti
V
47.867
50.942
zirconium
niobium
40
U
232.04
41
24
25
93
94
95
96
97
98
Np Pu Am Cm Bk Cf [237] iron
Cr Mn 51.996
54.938
molybdenum
42
Zr Nb Mo 91.224
92.906
hafnium
tantalum
72
73
Hf Ta 178.49
180.95
rutherfordium
dubnium
104
Rf Db [261]
e e Sc I N C
lutetium
71
Lu
Scandium 21
Iodine 53
Electron -
Nitrogen 7
Carbon 6
Electron -
44.956
126.90
0.000548
14.007
12.011
0.000548
174.97
lawrencium
103
Lr [262]
boron
5
B
10.811 aluminium
13
Al 26.982
28.086
gallium
germanium
31
32
Ga Ge 69.723
indium
72.64 tin
49
50
114.82
118.71
121.76
thallium
lead
bismuth
In Sn Sb 81
Tl
82
83
Pb Bi Po
164.9
einstein
99
Es
[252