Grundstoffernes Periodiske System

Includes interactive visualizations, properties, orbitals, isotopes, and compound mixing.
Don't like ads? No problem! You're still welcome to use the site. If you find it especially useful, please consider making a $1 monthly donation. If this works out, we'll get rid of ads for everyone. I donated; hide this message.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Pnictogens 16 Chalcogens 17 Halogener 18
1 1 H Brint 1,0081 Atom # Symbol Navn Atommasse


C Fast stof
Hg Væske
H Gas
Rf Ukendt
Metaller Halvmetaller Ikke-metaller
Alkalimetaller Jordalkalimetaller Lantanider Overgangsmetaller Post-overgangsmetaller Andre ikke-metaller Ædelgasser
Actinider
Kelvin
°Celsius
°Fahrenheit
7s
6s
5s
4s
3s
2s
1s
7p
6p
5p
4p
3p
2p
6d
5d
4d
3d
=
m=
n=
5f
4f
s
p
d
f
α Alfahenfald β− Betahenfald
p Protonemission β+ Positron emission
n Neutronemission K+ Elektronindfangning
SF Spontan fission   Stabil
2 He Helium 4,00262 K
2 3 Li Lithium 6,942
1
4 Be Beryllium 9,01222
2
5 B Bor 10,812
3
6 C Carbon 12,0112
4
7 N Kvælstof 14,0072
5
8 O Ilt 15,9992
6
9 F Fluor 18,9982
7
10 Ne Neon 20,1802
8
K
L
3 11 Na Natrium 22,9902
8
1
12 Mg Magnesium 24,3052
8
2
13 Al Aluminium 26,9822
8
3
14 Si Silicium 28,0852
8
4
15 P Fosfor 30,9742
8
5
16 S Svovl 32,062
8
6
17 Cl Klor 35,452
8
7
18 Ar Argon 39,9482
8
8
K
L
M
4 19 K Kalium 39,0982
8
8
1
20 Ca Calcium 40,0782
8
8
2
21 Sc Scandium 44,9562
8
9
2
22 Ti Titan 47,8672
8
10
2
23 V Vanadium 50,9422
8
11
2
24 Cr Krom 51,9962
8
13
1
25 Mn Mangan 54,9382
8
13
2
26 Fe Jern 55,8452
8
14
2
27 Co Kobolt 58,9332
8
15
2
28 Ni Nikkel 58,6932
8
16
2
29 Cu Kobber 63,5462
8
18
1
30 Zn Zink 65,382
8
18
2
31 Ga Gallium 69,7232
8
18
3
32 Ge Germanium 72,6302
8
18
4
33 As Arsen 74,9222
8
18
5
34 Se Selen 78,9712
8
18
6
35 Br Brom 79,9042
8
18
7
36 Kr Krypton 83,7982
8
18
8
K
L
M
N
5 37 Rb Rubidium 85,4682
8
18
8
1
38 Sr Strontium 87,622
8
18
8
2
39 Y Yttrium 88,9062
8
18
9
2
40 Zr Zirconium 91,2242
8
18
10
2
41 Nb Niobium 92,9062
8
18
12
1
42 Mo Molybdæn 95,952
8
18
13
1
43 Tc Technetium (98)2
8
18
13
2
44 Ru Ruthenium 101,072
8
18
15
1
45 Rh Rhodium 102,912
8
18
16
1
46 Pd Palladium 106,422
8
18
18
47 Ag Sølv 107,872
8
18
18
1
48 Cd Cadmium 112,412
8
18
18
2
49 In Indium 114,822
8
18
18
3
50 Sn Tin 118,712
8
18
18
4
51 Sb Antimon 121,762
8
18
18
5
52 Te Tellur 127,602
8
18
18
6
53 I Jod 126,902
8
18
18
7
54 Xe Xenon 131,292
8
18
18
8
K
L
M
N
O
6 55 Cs Cæsium 132,912
8
18
18
8
1
56 Ba Barium 137,332
8
18
18
8
2
57–71 72 Hf Hafnium 178,492
8
18
32
10
2
73 Ta Tantal 180,952
8
18
32
11
2
74 W Wolfram 183,842
8
18
32
12
2
75 Re Rhenium 186,212
8
18
32
13
2
76 Os Osmium 190,232
8
18
32
14
2
77 Ir Iridium 192,222
8
18
32
15
2
78 Pt Platin 195,082
8
18
32
17
1
79 Au Guld 196,972
8
18
32
18
1
80 Hg Kviksølv 200,592
8
18
32
18
2
81 Tl Thallium 204,382
8
18
32
18
3
82 Pb Bly 207,22
8
18
32
18
4
83 Bi Bismuth 208,982
8
18
32
18
5
84 Po Polonium (209)2
8
18
32
18
6
85 At Astat (210)2
8
18
32
18
7
86 Rn Radon (222)2
8
18
32
18
8
K
L
M
N
O
P
7 87 Fr Francium (223)2
8
18
32
18
8
1
88 Ra Radium (226)2
8
18
32
18
8
2
89–103 104 Rf Rutherfordium (267)2
8
18
32
32
10
2
105 Db Dubnium (268)2
8
18
32
32
11
2
106 Sg Seaborgium (269)2
8
18
32
32
12
2
107 Bh Bohrium (270)2
8
18
32
32
13
2
108 Hs Hassium (277)2
8
18
32
32
14
2
109 Mt Meitnerium (278)2
8
18
32
32
15
2
110 Ds Darmstadtium (281)2
8
18
32
32
17
1
111 Rg Røntgenium (282)2
8
18
32
32
17
2
112 Cn Copernicium (285)2
8
18
32
32
18
2
113 Nh Nihonium (286)2
8
18
32
32
18
3
114 Fl Flerovium (289)2
8
18
32
32
18
4
115 Mc Moscovium (290)2
8
18
32
32
18
5
116 Lv Livermorium (293)2
8
18
32
32
18
6
117 Ts Tennessine (294)2
8
18
32
32
18
7
118 Og Oganesson (294)2
8
18
32
32
18
8
K
L
M
N
O
P
Q
For grundstoffer uden nogen stabile isotope gælder massen for isotopen med den længste halveringstid.
57 La Lanthan 138,912
8
18
18
9
2
58 Ce Cerium 140,122
8
18
19
9
2
59 Pr Praseodym 140,912
8
18
21
8
2
60 Nd Neodym 144,242
8
18
22
8
2
61 Pm Promethium (145)2
8
18
23
8
2
62 Sm Samarium 150,362
8
18
24
8
2
63 Eu Europium 151,962
8
18
25
8
2
64 Gd Gadolinium 157,252
8
18
25
9
2
65 Tb Terbium 158,932
8
18
27
8
2
66 Dy Dysprosium 162,502
8
18
28
8
2
67 Ho Holmium 164,932
8
18
29
8
2
68 Er Erbium 167,262
8
18
30
8
2
69 Tm Thulium 168,932
8
18
31
8
2
70 Yb Ytterbium 173,052
8
18
32
8
2
71 Lu Lutetium 174,972
8
18
32
9
2
89 Ac Actinium (227)2
8
18
32
18
9
2
90 Th Thorium 232,042
8
18
32
18
10
2
91 Pa Protactinium 231,042
8
18
32
20
9
2
92 U Uran 238,032
8
18
32
21
9
2
93 Np Neptunium (237)2
8
18
32
22
9
2
94 Pu Plutonium (244)2
8
18
32
24
8
2
95 Am Americium (243)2
8
18
32
25
8
2
96 Cm Curium (247)2
8
18
32
25
9
2
97 Bk Berkelium (247)2
8
18
32
27
8
2
98 Cf Californium (251)2
8
18
32
28
8
2
99 Es Einsteinium (252)2
8
18
32
29
8
2
100 Fm Fermium (257)2
8
18
32
30
8
2
101 Md Mendelevium (258)2
8
18
32
31
8
2
102 No Nobelium (259)2
8
18
32
32
8
2
103 Lr Lawrencium (266)2
8
18
32
32
8
3

Wikipedia - - Periodiske System

Periodiske System Chemical Element Loading…