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