1. No category

IA
1
1
1
2
3
4
5
6
7
H
Väte
1.0079
1
Grupp
PERIODISKA SYSTEMET
14
2
IIA
3
4
Litium
6.941
2-1
Beryllium
9.01218
2-2
11
12
6
Period
Li Be
IVA
C
2
Atomnummer
Alkalimetaller
Metaller
Symbol
Alkaliska jordartsmetaller
Metalloider
Övergångsmetaller
Icke-metaller
Lantanoider
Halogener
Aktinoider
Ädelgaser
Namn
Atomvikt
Kol
12.011
2-4
Elektronkonfiguration
Si – fast
vid 20°C
Xe – gas
och 101 kPa
Br – flytande
Pm – syntetiskt
Na Mg
Natrium
22.9898
2-8-1
Magnesium
24.3050
2-8-2
19
20
21
22
Kalium
39.0983
2-8-8-1
Kalcium
40.078
2-8-8-2
Skandium
44.956
2-8-9-2
37
38
Rubidium
85.4678
2-8-18-8-1
Strontium
87.62
2-8-18-8-2
55
56
Cesium
132.9054
2-8-18-18-8-1
Barium
137.327
2-8-18-18-8-2
87
88
Frankium
(223)
2-8-18-32-18-8-1
Radium
226.025
2-8-18-32-18-8-2
IIIB 4
3
IVB 5
( ) Atomvikt för den mest
13
VIIIB
VB 6
VIB 7
VIIB 8
9
10
11
IVA 15
6
2
He
VA 16
7
IB 12
IIB
VIA 17
8
9
10
C
Kol
12.011
2-4
N
Kväve
14.0067
2-5
Syre
15.9994
2-6
Fluor
18.9984
2-7
Neon
20.1797
2-8
13
14
15
16
17
18
Aluminium
26.9815
2-8-3
Kisel
28.0855
2-8-4
Fosfor
30.9738
2-8-5
Svavel
32.065
2-8-6
Klor
35.453
2-8-7
Argon
39.948
2-8-8
O
F Ne
S Cl Ar
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Titan
47.867
2-8-10-2
Vanadin
50.942
2-8-11-2
Krom
51.996
2-8-13-1
Mangan
54.9308
2-8-13-2
Järn
55.845
2-8-14-2
Kobolt
58.9332
2-8-15-2
Nickel
58.6934
2-8-16-2
Koppar
63.546
2-8-18-1
Zink
65.39
2-8-18-2
Gallium
69.723
2-8-18-3
Germanium
72.64
2-8-18-4
Arsenik
74.9216
2-8-18-5
Selen
78.96
2-8-18-6
Brom
79.904
2-8-18-7
Krypton
83.80
2-8-18-8
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
Yttrium
88.906
2-8-18-9-2
Zirkonium
91.224
2-8-18-10-2
Niob
92.906
2-8-18-11-2
Molybden
95.94
2-8-18-13-1
Teknetium
(98)
2-8-18-13-2
Rutenium
101.07
2-8-18-15-1
Rodium
102.905
2-8-18-16-1
Palladium
106.42
2-8-18-18-0
Silver
107.868
2-8-18-18-1
Kadmium
112.411
2-8-18-18-2
Indium
114.818
2-8-18-18-3
Tenn
118.710
2-8-18-18-4
Antimon
121.760
2-8-18-18-5
Tellur
127.60
2-8-18-18-6
I
54
Jod
126.9045
2-8-18-18-7
Xe
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
Hafnium
178.49
2-8-18-32-10-2
Tantal
180.948
2-8-18-32-11-2
Wolfram
183.84
2-8-18-32-12-2
Rhenium
186.207
2-8-18-32-13-2
Osmium
190.23
2-8-18-32-14-2
Iridium
192.217
2-8-18-32-15-2
Platina
195.078
2-8-18-32-16-2
Guld
196.9665
2-8-18-32-18-1
Kvicksilver
200.59
2-8-18-32-18-2
Tallium
204.383
2-8-18-32-18-3
Bly
207.2
2-8-18-32-18-4
Vismut
208.980
2-8-18-32-18-5
Polonium
(209)
2-8-18-32-18-6
Astat
(210)
2-8-18-32-18-7
Radon
(222)
2-8-18-32-18-8
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
Lantan
226.025
2-8-18-18-9-2
Cerium
226.025
2-8-18-20-8-2
Praseodym
226.025
2-8-18-21-8-2
Neodym
226.025
2-8-18-22-8-2
Prometium
226.025
2-8-18-23-8-2
Samarium
226.025
2-8-18-24-8-2
Europium
226.025
2-8-18-25-8-2
Gadolinium
226.025
2-8-18-25-9-2
Terbium
226.025
2-8-18-27-8-2
Dysprosium
226.025
2-8-18-28-8-2
Holmium
226.025
2-8-18-29-8-2
Erbium
226.025
2-8-18-30-8-2
Tulium
226.025
2-8-18-31-8-2
Ytterbium
226.025
2-8-18-32-8-2
Lutetium
226.025
2-8-18-32-9-2
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
Aktinium
(227)
2-8-18-32-18-9-2
Thorium
232.0381
2-8-18-32-18-10-2
Protaktinium
231.0359
2-8-18-32-20-9-2
Uran
238.0289
2-8-18-32-21-9-2
Neptunium
237.048
2-8-18-32-22-9-2
Plutonium
(244)
2-8-18-32-24-8-2
Americum
(243)
2-8-18-32-25-8-2
Curium
(247)
2-8-18-25-9-2
Berkelium
(247)
2-8-18-32-27-8-2
Californium
(251)
2-8-18-32-28-8-2
Einsteinium
(252)
2-8-18-32-29-8-2
Fermium
(257)
2-8-18-32-30-8-2
Mendelevium
(258)
2-8-18-32-31-8-2
Nobelium
(259)
2-8-18-32-32-8-2
Lawrencium
(260)
2-8-18-32-32-9-2
K Ca Sc Ti
V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te
Xenon
131.29
2-8-18-18-8
Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rd
Cs Ba
Fr Ra
VIIA
Helium
4.00206
2
Bor
10.811
2-3
B
Al Si P
Radioaktiv
stabila isotopen
IIIA 14
5
18 VIIIA
La-Lu
6
Ac-Lw
7
La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md Nd Lw