Gruppe
Periode
1
18
1
2
13
14
15
16
17
2
3
LiLithium
4
BeBeryllium
3
11
NaNatrium
12
MgMagnesium
3
4
5
6
7
8
9
10
11
12
13
AlAluminium
4
19
KKalium
20
CaCalcium
21
ScScandium
22
TiTitan
23
VVanadium
24
CrChrom
25
MnMangan
26
FeJern
27
CoKobolt
28
NiNikkel
29
CuKobber
30
ZnZink
31
GaGallium
32
GeGermanium
5
37
RbRubidium
38
SrStrontium
39
YYttrium
40
ZrZirkonium
41
NbNiobium
42
MoMolybdæn
43
TcTechnetium
44
RuRuthenium
45
RhRhodium
46
PdPalladium
47
AgSølv
48
CdCadmium
49
InIndium
50
SnTin
51
SbAntimon
6
55
CsCæsium
56
BaBarium
72
HfHafnium
73
TaTantal
74
WWolfram
75
ReRhenium
76
OsOsmium
77
IrIridium
78
PtPlatin
79
AuGuld
80
HgKviksølv
81
TlThallium
82
PbBly
83
BiBismuth
84
PoPolonium
7
87
FrFrancium
88
RaRadium
104
RfRutherfordium
105
DbDubnium
106
SgSeaborgium
107
BhBohrium
108
HsHassium
109
MtMeitnerium
110
DsDarmstadtium
111
RgRøntgenium
112
CnCopernicium
113
NhNihonium
114
FlFlerovium
115
McMoscovium
116
LvLivermorium
117
TsTennessin
118
OgOganesson
57
LaLanthan
58
CeCerium
59
PrPraseodym
60
NdNeodym
61
PmPromethium
62
SmSamarium
63
EuEuropium
64
GdGadolinium
65
TbTerbium
66
DyDysprosium
67
HoHolmium
68
ErErbium
69
TmThulium
70
YbYtterbium
71
LuLutetium
Metaller
89
AcActinium
90
ThThorium
91
PaProtactinium
92
UUran
93
NpNeptunium
94
PuPlutonium
95
AmAmericium
96
CmCurium
97
BkBerkelium
98
CfCalifornium
99
EsEinsteinium
100
FmFermium
101
MdMendelevium
102
NoNobelium
103
LrLawrencium
Ikke-metaller