H
1.008
Hydrogen
Li
6.94
Lithium
Na
22.990
Sodium
19
K
39.098
Potassium
37
Rb
Cs
132.905
Cesium
87
Fr
(223)
Francium
Be
9.012
Beryllium
Mg
24.305
Magnesium
20
Ca
40.078
Calcium
38
Sr
87.62
Strontium
Ba
137.327
Barium
88
Ra
(226)
Radium
21
Sc
44.956
Scandium
39
22
Ti
47.867
Titanium
40
Zr
91.224
Zirconium
Hf
178.49
Hafnium
104
Rf
(267)
Rutherfordium
23
50.942
Vanadium
41
Nb
92.906
Niobium
Ta
180.948
Tantalum
105
Db
(268)
Dubnium
24
Cr
42
Mo
95.95
Molybdenum
w
183.84
Tungsten
106
Sg
(271)
Seaborglum
Periodic Table
Atomic
Number
SYMBOL
Atomic Weight *
Name
25
Mn
54.938
Manganese
43
Tc
(98)
Technetium
Re
186.207
Rhenium
107
Bh
(270)
Bohrlum
26
Fe
55.845
Iron
44
Ru
101.07
Ruthenium
Os
190.23
Osmium
108
Hs
(269)
Haeelum
Alkali metals
Alkali earth metals
Transition metals
Post-transition metals
Metlloid
Lanthanides
Actinides
Nonmetals
Hologens
Noble gases
27
Co
58.933
Cobalt
45
Rh
102.906
Rhodium
lr
192.217
Iridium
109
Mt
(278)
Meitnerium
28
Ni
58.693
Nickel
46
Pd
106.42
Palladium
Pt
195.084
Platinum
110
Ds
(281)
Darmetadtiun
29
Cu
63.546
Copper
47
Ag
107.868
Silver
Au
196.967
Gold
Rg
(282)
Roentgenlum
30
Zn
65.38
Zinc
48
Cd
112.414
Cadmium
Hg
200.592
Mercury
112
Cn
(285)
Copernlclum
5
B
10.81
6
C
12.011
Carbon
7 N
14.007
Nitrogen
8
0
15.999
Oxygen
9
F
18.998
Fluorine
13
Al
26.982
Aluminium
14
Si
28.085
Silicon
15
P
30.974
Phosphorus
16
S
32.06
Sulfur
17
CI
35.45
Chlorine
31
Ga
69.723
Gallium
32
Ge
72.630
Germanium
33
As
74.922
Arsenic
34
Se
78.971
Selenium
35
Br
79.904
Bromine
49
In
114.818
Indium
50
Sn
118.710
Tin
51
Sb
121.760
Antimony
52
Te
127.60
Tellurium
53
1
126.904
Iodine
81
TI
204.38
Thallium
82
Pb
207.2
83
Bi
208.980
Bismuth
84
Po
(209)
Polonium
85
At
(210)
Astatine
113
Nh
(286)
Nlhonlum
114
Fl
(289)
Flerovlum
115
Mc
(289)
Moecovlum
116
Lv
(293)
Llvermorlum
117
Ts
(294)
Tenneeelne
He
4.003
Helium
Lanthanide
Series
Actinide
Series
57
La
138.905
Lanthanum
58
Ce
140.116
Cerium
59
Pr
140.908
Praseodymium
60
Nd
144.242
Neodymlum
61
Pm
(145)
Promethium
62
Sm
150.36
Samarium
63
Eu
151.964
Europium
64
Gd
157.25
Gadolinium
65
Tb
158.925
Terbium
66
Dy
162.500
Dysprosium
67
Ho
164.930
Holmium
68
Er
167.259
Erbium
89
Ac
(227)
Actinium
90
Th
232.038
Thorium
91
Pa
231.036
Protactinium
92
U
238.029
Uranium
93
Np
(237)
Neptunium
94
Pu
(244)
Plutonium
95
Am
(243)
Americium
96
Cm
(247)
Curium
97
Bk
(247)
Berkellum
98
Cf
(251)
Californium
99
Es
(252)
Einsteinium
100
Fm
(257)
69
Tm
168.934
Thulium
101
Md
(258)
Mendelevium
Yb
173.045
Ytterbium
102
No
(259)
Nobellum
Lu
174.967
Lutetium
Lr
(266)
Lawrencium
*() indicates the mass number of the longest-lived isotope.
Based on NIST 2017 Periodic Table

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