Periodensystem

C
Br
He
Tc

Fest
Flüssig
Gas
Synthetisch
Alkalitmetal e
Wasserstoff
Name
Erdalkalitmetal e
Helium
1
Ordnungszahl
Übergangsmetal e

2
H
Elementsymbol
Andere Metal e
He
1.00794
Atommasse
Nichtmetal e
4.002602
Lithium
Beryl ium
Edelgase


Bor
Kohlenstoff
Stickstoff
Sauerstoff
Fluor
Neon
3
4
Lanthanoide
5
6
7
8
9
10
Li
Be
Actiniode
B
C
N
O
F
Ne
6.941
9.012182
10.811
12.0107
14.00674
15.9994
18.9984
20.1797
Natrium
Magnesium
Aluminium
Silicium
Phosphor
Schwefel
Chlor
Argon
11
12
13
14
15
16
17
18
Na
Mg
Al
Si
P
S
Cl
Ar
22.98977
24.3050
26.981538
28.0855
30.97376
32.065
35.453
39.984
Kalium
Calcium
Scandium
Titan
Vanadium
Chrom
Mangan
Eisen
Kobalt
Nickel
Kupfer
Zink
Gal ium
Germanium
Arsen
Selen
Brom
Krypton
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
K
Ca
Sc
Ti
V
Cr
Mn
Fe
Co
Ni
Cu
Zn
Ga
Ge
As
Se
Br
Kr
39.0983
40.078
44.95591
47.867
50.9415
51.9961
54.93805
55.845
58.9332
58.6934
63.546
65.409
69.723
72.64
74.9216
78.96
79.904
83.798
Rubidium
Strontium
Yttrium
Zirconium
Niob
Molybdän
Technetium Ruthenium Rhodium
Pal adium
Silber
Cadmium
Indium
Zinn
Antimon
Tel ur
Iod
Xenon
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
Rb
Sr
Y
Zr
Nb
Mo
Tc
Ru
Rh
Pd
Ag
Cd
In
Sn
Sb
Te
I
Xe
85.4678
87.62
88.90585
91.225
92.90638
95.94
[98]
101.07
102.9055
106.42
107.8682
112.411
114.818
118.710
121.760
127.60
126.9045
131.293
Caesium
Barium
Hafnium
Tantal
Wolfram
Rhenium
Osmium
Iridium
Platin
Gold
Quecksilber
Thal ium
Blei
Bismut
Polonium
Astat
Radon
55
56
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
Cs
Ba
Hf
Ta
W
Re
Os
Ir
Pt
Au
Hg
Tl
Pb
Bi
Po
At
Rn
132.90545
137.327
178.49
180.9479
183.84
186.207
190.23
192.217
195.078
196.96655
200.59
204.3833
207.2
208.980
[209]
[210]
[222]
Francium
Radium
Rutherfordium
Dubnium
Seaborgium
Bohrium
Hassium Meitnerium Darmstadtium Röntgenium Copernicium Ununtrium Ununquadium Ununpentium Ununhexium Ununseptium Ununoctium
87
88
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
Fr
Ra
Rf
Db
Sg
Bh
Hs
Mt
Ds
Rg
Cn
Uut
Uuq
Uup
Uuh
Uus
Uuo
[223]
[226]
[261]
[262]
[266]
[264]
[269]
[268]
[271]
[272]
[285]
[287]
[289]
[288]
[289]
[293]
[294]
Lenthan
Cer
Praseodymium Neodymium Promethium Samarium Europium Gadolinium
Terbium
Dysprosium
holmium
Erbium
Thulium
Ytterbium
Lutetium
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
La
Ce
Pr
Nd
Pm
Sm
Eu
Gd
Tb
Dy
Ho
Er
Tm
Yb
Lu
138.9055
140.116
140.90765
144.24
[145]
150.36
151.964
157.25
158.9253
162.50
164.930
167.259
168.934
173.04
174.97
Actinium
Thorium
Protaktinium
Uran
Neptunium Plutonium Americium
Curium
Berkelium
Californium Einsteinium
Fermium
Mendelevium Nobelium Lawrencium
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
Ac
Th
Pa
U
Np
Pu
Am
Cm
Bk
Cf
Es
Fm
Md
No
Lr
[227]
232.038
231.0359
238.0289
[237]
[244]
[243]
[247]
[247]
[251]
[252]
[257]
[258]
[259]
173.04

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