Periodensystem
Die Elektronenkonfiguration
der Atome
Erläuterungen finden Sie beim
Schalenmodell
|
P.
|
Orbitale |
1s
|
2s 2p
|
3s 3p
|
4s 3d 4p
|
5s 4d 5p
|
6s 4f 5d
6p
|
7s 5f 6d
7p
|
|
1
|
Helium [He] |
2
|
|
|
|
|
|
|
|
2
|
Neon [Ne] |
2
|
2 6
|
|
|
|
|
|
|
3
|
Argon [Ar] |
2
|
2 6
|
2 6
|
|
|
|
|
|
4
|
Krypton [Kr] |
2
|
2 6
|
2 6
|
2 10 6
|
|
|
|
|
5
|
Xenon [Xe] |
2
|
2 6
|
2 6
|
2 10 6
|
2 10 6
|
|
|
|
6
|
Radon [Rn] |
2
|
2 6
|
2 6
|
2 10 6
|
2 10 6
|
2 14 10 6
|
|
|
7
|
Ununoctium |
2
|
2 6
|
2 6
|
2 10 6
|
2 10 6
|
2 14 10 6
|
2 14 10 6
|
P.: Perioden
im Periodensystem
|
Ordnungszahl
|
Name
|
Elektronenkonfiguration
|
|
1
|
Wasserstoff
|
1s1
|
|
2
|
Helium
|
1s2
|
|
3
|
Lithium
|
[He] 2s1
|
|
4
|
Beryllium
|
[He] 2s2
|
|
5
|
Bor
|
[He] 2s2 2p1
|
|
6
|
Kohlenstoff
|
[He] 2s2 2p2
|
|
7
|
Stickstoff
|
[He] 2s2 2p3
|
|
8
|
Sauerstoff
|
[He] 2s2 2p4
|
|
9
|
Fluor
|
[He] 2s2 2p5
|
|
10
|
Neon
|
[He] 2s2 2p6
|
|
11
|
Natrium
|
[Ne] 3s1
|
|
12
|
Magnesium
|
[Ne] 3s2
|
|
13
|
Aluminium
|
[Ne] 3s2 3p1
|
|
14
|
Silicium
|
[Ne] 3s2 3p2
|
|
15
|
Phosphor
|
[Ne] 3s2 3p3
|
|
16
|
Schwefel
|
[Ne] 3s2 3p4
|
|
17
|
Chlor
|
[Ne] 3s2 3p5
|
|
18
|
Argon
|
[Ne] 3s2 3p6
|
|
19
|
Kalium
|
[Ar] 4s1
|
|
20
|
Calcium
|
[Ar] 4s2
|
|
21
|
Scandium
|
[Ar] 3d1 4s2
|
|
22
|
Titan
|
[Ar] 3d2 4s2
|
|
23
|
Vanadium
|
[Ar] 3d3 4s2
|
|
24
|
Chrom
|
[Ar] 3d5 4s1
|
|
25
|
Mangan
|
[Ar] 3d5 4s2
|
|
26
|
Eisen
|
[Ar] 3d6 4s2
|
|
27
|
Cobalt
|
[Ar] 3d7 4s2
|
|
28
|
Nickel
|
[Ar] 3d8 4s2
|
|
29
|
Kupfer
|
[Ar] 3d10 4s1
|
|
30
|
Zink
|
[Ar] 3d10 4s2
|
|
31
|
Gallium
|
[Ar] 3d10 4s2 4p1
|
|
32
|
Germanium
|
[Ar] 3d10 4s2 4p2
|
|
33
|
Arsen
|
[Ar] 3d10 4s2 4p3
|
|
34
|
Selen
|
[Ar] 3d10 4s2 4p4
|
|
35
|
Brom
|
[Ar] 3d10 4s2 4p5
|
|
36
|
Krypton
|
[Ar] 3d10 4s2 4p6
|
|
37
|
Rubidium
|
[Kr] 5s1
|
|
38
|
Strontium
|
[Kr] 5s2
|
|
39
|
Yttrium
|
[Kr] 4d1 5s2
|
|
40
|
Zirconium
|
[Kr] 4d2 5s2
|
|
41
|
Niob
|
[Kr] 4d4 5s1
|
|
42
|
Molybdän
|
[Kr] 4d5 5s1
|
|
43
|
Technetium
|
[Kr] 4d6 5s1
|
|
44
|
Ruthenium
|
[Kr] 4d7 5s1
|
|
45
|
Rhodium
|
[Kr] 4d8 5s1
|
|
46
|
Palladium
|
[Kr] 4d10
|
|
47
|
Silber
|
[Kr] 4d10 5s1
|
|
48
|
Cadmium
|
[Kr] 4d10 5s2
|
|
49
|
Indium
|
[Kr] 4d10 5s2 5p1
|
|
50
|
Zinn
|
[Kr] 4d10 5s2 5p2
|
|
51
|
Antimon
|
[Kr] 4d10 5s2 5p3
|
|
52
|
Tellur
|
[Kr] 4d10 5s2 5p4
|
|
53
|
Iod
|
[Kr] 4d10 5s2 5p5
|
|
54
|
Xenon
|
[Kr] 4d10 5s2 5p6
|
|
55
|
Caesium
|
[Xe] 6s1
|
|
56
|
Barium
|
[Xe] 6s2
|
|
57
|
Lanthan
|
[Xe] 5d1 6s2
|
|
58
|
Cer
|
[Xe] 4f2 6s2
|
|
59
|
Praseodym
|
[Xe] 4f3 6s2
|
|
60
|
Neodym
|
[Xe] 4f4 6s2
|
|
61
|
Promethium
|
[Xe] 4f5 6s2
|
|
62
|
Samarium
|
[Xe] 4f6 6s2
|
|
63
|
Europium
|
[Xe] 4f7 6s2
|
|
64
|
Gadolinium
|
[Xe] 4f7 5d1 6s2
|
|
65
|
Terbium
|
[Xe] 4f9 6s2
|
|
66
|
Dysprosium
|
[Xe] 4f10 6s2
|
|
67
|
Holmium
|
[Xe] 4f11 6s2
|
|
68
|
Erbium
|
[Xe] 4f12 6s2
|
|
69
|
Thulium
|
[Xe] 4f13 6s2
|
|
70
|
Ytterbium
|
[Xe] 4f14 6s2
|
|
71
|
Lutetium
|
[Xe] 4f14 5d1 6s2
|
|
72
|
Hafnium
|
[Xe] 4f14 5d2 6s2
|
|
73
|
Tantal
|
[Xe] 4f14 5d3 6s2
|
|
74
|
Wolfram
|
[Xe] 4f14 5d4 6s2
|
|
75
|
Rhenium
|
[Xe] 4f14 5d5 6s2
|
|
76
|
Osmium
|
[Xe] 4f14 5d6 6s2
|
|
77
|
Iridium
|
[Xe] 4f14 5d7 6s2
|
|
78
|
Platin
|
[Xe] 4f14 5d9 6s1
|
|
79
|
Gold
|
[Xe] 4f14 5d10 6s1
|
|
80
|
Quecksilber
|
[Xe] 4f14 5d10 6s2
|
|
81
|
Thallium
|
[Xe] 4f14 5d10 6s2
6p1
|
|
82
|
Blei
|
[Xe] 4f14 5d10 6s2
6p2
|
|
83
|
Bismut
|
[Xe] 4f14 5d10 6s2
6p3
|
|
84
|
Polonium
|
[Xe] 4f14 5d10 6s2
6p4
|
|
85
|
Astat
|
[Xe] 4f14 5d10 6s2
6p5
|
|
86
|
Radon
|
[Xe] 4f14 5d10 6s2
6p6
|
|
87
|
Francium
|
[Rn] 7s1
|
|
88
|
Radium
|
[Rn] 7s2
|
|
89
|
Actinium
|
[Rn] 6d1 7s2
|
|
90
|
Thorium
|
[Rn] 6d2 7s2
|
|
91
|
Protactinium
|
[Rn] 5f2 6d1 7s2
|
|
92
|
Uran
|
[Rn] 5f3 6d1 7s2
|
|
93
|
Neptunium
|
[Rn] 5f4 6d1 7s2
|
|
94
|
Plutonium
|
[Rn] 5f6 7s2
|
|
95
|
Americium
|
[Rn] 5f7 7s2
|
|
96
|
Curium
|
[Rn] 5f7 6d1 7s2
|
|
97
|
Berkelium
|
[Rn] 5f9 7s2
|
|
98
|
Californium
|
[Rn] 5f10 7s2
|
|
99
|
Einsteinium
|
[Rn] 5f11 7s2
|
|
100
|
Fermium
|
[Rn] 5f12 7s2
|
|
101
|
Mendelevium
|
[Rn] 5f13 7s2
|
|
102
|
Nobelium
|
[Rn] 5f14 7s2
|
|
103
|
Lawrencium
|
[Rn] 5f14 6d1 7s2
|
|
104
|
Rutherfordium
|
[Rn] 5f14 6d2 7s2
|
|
105
|
Dubnium
|
[Rn] 5f14 6d3 7s2
|
|
106
|
Seaborgium
|
[Rn] 5f14 6d4 7s2
|
|
107
|
Bohrium
|
[Rn] 5f14 6d5 7s2
|
|
108
|
Hassium
|
[Rn] 5f14 6d6 7s2
|
|
109
|
Meitnerium
|
[Rn] 5f14 6d7 7s2
|
|
110
|
Darmstadtium
|
[Rn] 5f14 6d9 7s1
|
|
111
|
Roentgenium
|
[Rn] 5f14 6d10 7s1
|
|
112
|
Ununbium
|
[Rn] 5f14 6d10
7s2
|
|
113
|
Ununtrium
|
[Rn] 5f14 6d10
7s2 7p1
|
|
114
|
Ununquadium
|
[Rn] 5f14 6d10
7s2 7p2
|
|
115
|
Ununpentium
|
[Rn] 5f14 6d10
7s2 7p3
|
|
116
|
Ununhexium
|
[Rn] 5f14 6d10
7s2 7p4
|
|
117
|
Ununseptium
|
[Rn] 5f14 6d10
7s2 7p5
|
|
118
|
Ununoctium
|
[Rn] 5f14 6d10
7s2 7p6
|