gas
vloeibaar
vast
*onbekend*
1
IA
18
VIIIA
H
waterstof
2
IIA
13
IIIA
14
IVA
15
VA
16
VIA
17
VIIA
He
helium
3
Li
lithium
4
Be
beryllium
5
B
boor
6
C
koolstof
7
N
stikstof
8
O
zuurstof
9
F
fluor
10
Ne
neon
11
Na
natrium
12
Mg
magnesium
IIIB
IVB
VB
VIB
VIIB
VIIIB
IB
IIB
Al
aluminium
Si
silicium
P
fosfor
S
zwavel
Cl
chloor
Ar
argon
19
K
kalium
20
Ca
calcium
21
Sc
scandium
22
Ti
titaan
23
V
vanadium
24
Cr
chroom
25
Mn
mangaan
26
Fe
ijzer
27
Co
kobalt
28
Ni
nikkel
29
Cu
koper
30
Zn
zink
31
Ga
gallium
32
Ge
germanium
33
As
arseen
34
Se
selenium
35
Br
broom
36
Kr
krypton
37
Rb
rubidium
38
Sr
strontium
39
Y
yttrium
40
Zr
zirkonium
41
Nb
niobium
42
Mo
molybdeen
43
Tc
technetium
44
Ru
ruthenium
45
Rh
rhodium
46
Pd
palladium
47
Ag
zilver
48
Cd
cadmium
49
In
indium
50
Sn
tin
51
Sb
antimoon
52
Te
telluur
53
I
jood
54
Xe
xenon
55
Cs
cesium
56
Ba
barium
*
72
Hf
hafnium
73
Ta
tantaal
74
W
wolfraam
75
Re
rhenium
76
Os
osmium
77
Ir
iridium
78
Pt
platina
79
Au
goud
80
Hg
kwik
81
Tl
thallium
82
Pb
lood
83
Bi
bismut
84
Po
polonium
85
At
astaat
86
Rn
radon
87
Fr
francium
88
Ra
radium
**
104
Rf
rutherfordium
105
Db
dubnium
106
Sg
seaborgium
107
Bh
bohrium
108
Hs
hassium
109
Mt
meitnerium
110
Ds
darmstadtium
111
Rg
röntgenium
112
Cn
copernicium
113
Nh
nihonium
114
Fl
flerovium
115
Mc
moscovium
116
Lv
livermorium
117
Ts
tennessine
118
Og
oganesson
* lanthaniden
57
La
lanthaan
58
Ce
cerium
59
Pr
praseodymium
60
Nd
neodymium
61
Pm
promethium
62
Sm
samarium
63
Eu
europium
64
Gd
gadolinium
65
Tb
terbium
66
Dy
dysprosium
67
Ho
holmium
68
Er
erbium
69
Tm
thulium
70
Yb
ytterbium
71
Lu
lutetium
** actiniden
89
Ac
actinium
90
Th
thorium
91
Pa
protactinium
92
U
uraan
93
Np
neptunium
94
Pu
plutonium
95
Am
americium
96
Cm
curium
97
Bk
berkelium
98
Cf
californium
99
Es
einsteinium
100
Fm
fermium
101
Md
mendelevium
102
No
nobelium
103
Lr
lawrencium