2
He
Hel
4.0026
10
Ne
Neon
20.18
18
Ar
Argon
39.948
36
Kr
Krypton
83.798
54
Xe
Ksenon
131.29
57
La
Lantan
138.91
58
Ce
Cer
140.12
59
Pr
Prazeodym
140.91
60
Nd
Neodym
144.24
61
Pm
Promet
144.24
62
Sm
Samar
150.36
63
Eu
Europ
151.96
64
Gd
Gadolin
157.25
65
Tb
Terb
158.93
66
Dy
Dysproz
162.5
67
Ho
Holm
164.93
68
Er
Erb
167.26
69
Tm
Tul
168.93
70
Yb
Iterb
173.05
71
Lu
Lutet
174.97
86
Rn
Radon
(222)
89
Ac
Aktyn
(227)
90
Th
Tor
232.04
91
Pa
Protaktyn
231.04
92
U
Uran
238.03
93
Np
Neptun
(237)
94
Pu
Pluton
(244)
95
Am
Ameryk
(243)
96
Cm
Kiur
(247)
97
Bk
Berkel
(247)
98
Cf
Kaliforn
(251)
99
Es
Einstein
(252)
100
Fm
Ferm
(257)
101
Md
Mendelew
(258)
102
No
Nobel
(259)
103
Lr
Lorens
(266)
109
Mt
Meitner
(278)
110
Ds
Darmstadt
(281)
111
Rg
Rentgen
(282)
113
Nh
Nihon
(286)
115
Mc
Moskow
(290)
116
Lv
Liwermor
(293)
117
Ts
Tenes
(294)
118
Og
Oganes
(294)
57-71
89-103