Periodic Table of the Elements
Non-metal
Metal
Noble gas
Alkali metal
Metalloid
Actinide
Alkaline earth metal
Halogen
Lanthanide
Transition metal
1
H
Hydrogen
1.008
2
He
Helium
4.0026
3
Li
Lithium
6.94
4
Be
Beryllium
9.0122
5
B
Boron
10.81
6
C
Carbon
12.011
7
N
Nitrogen
14.007
8
O
Oxygen
15.999
9
F
Fluorine
18.998
10
Ne
Neon
20.180
11
Na
Sodium
22.99
12
Mg
Magnesium
24.305
13
Al
Aluminium
26.982
14
Si
Silicon
28.085
15
P
Phosphorus
30.974
16
S
Sulfur
32.06
17
Cl
Chlorine
35.45
18
Ar
Argon
39.948
19
K
Potassium
39.098
20
Ca
Calcium
40.078
21
Sc
Scandium
44.955
22
Ti
Titanium
47.867
23
V
Vanadium
51.961
24
Cr
Chromium
51.9961
25
Mn
Manganese
54.938
26
Fe
Iron
55.845
27
Co
Cobalt
58.933
28
Ni
Nickel
58.6934
29
Cu
Copper
63.546
30
Zn
Zinc
65.39
31
Ga
Gallium
69.723
32
Ge
Germanium
72.64
33
As
Arsenic
74.9216
34
Se
Selenium
78.96
35
Br
Bromine
79.904
36
Kr
Krypton
83.8
37
Rb
Rubidium
85.4678
38
Sr
Strontium
87.62
39
Y
Yttrium
88.9059
40
Zr
Zirconium
91.224
41
Nb
Niobium
92.9064
42
Mo
Molybdenum
95.94
43
Tc
Technetium
98
44
Ru
Ruthenium
101.07
45
Rh
Rhodium
102.9055
46
Pd
Palladium
106.42
47
Cd
Cadmium
112.411
48
Cd
Cadmium
112.411
49
In
Indium
114.818
50
Sn
Tin
121.76
51
Sb
Antimony
121.76
52
Te
Tellurium
127.6
53
I
Iodine
126.9045
54
Xe
Xenon
131.293
55
Cs
Cesium
132.9055
56
Ba
Barium
137.327
57-71
★
72
Hf
Hafnium
178.49
73
Ta
Tantalum
180.9479
74
W
Tungsten
183.84
75
Re
Rhenium
186.207
76
Os
Osmium
190.23
77
Ir
Iridium
192.217
78
Pt
Platinum
195.078
79
Au
Gold
196.9665
80
Hg
Mercury
200.59
81
Tl
Thallium
204.3833
82
Pb
Lead
207.2
83
Bi
Bismuth
208.9804
84
Po
Polonium
209
85
At
Astatine
210
86
Rn
Radon
222
87
Fr
Francium
223
88
Ra
Radium
226
89-103
★★
104
Rf
Rutherfordium
261
105
Db
Dubnium
262
106
Sg
Seaborgium
266
107
Bh
Bohrium
264
108
Hs
Hassium
277
109
Mt
Meitnerium
268
110
Ds
Darmstadtium
281
111
Rg
Roentgenium
272
112
Cn
Copernicium
285
113
Nh
Nihonium
284
114
Fl
Flerovium
289
115
Mc
Moscovium
288
116
Lv
Livermorium
293
117
Ts
Tennessine
294
118
Og
Oganesson
294
Lanthanide
★
57
La
Lanthanum
138.9055
58
Ce
Cerium
140.116
59
Pr
Praseodymium
140.9077
60
Nd
Neodymium
144.24
61
Pm
Promethium
145
62
Sm
Samarium
150.36
63
Eu
Europium
151.964
64
Gd
Gadolinium
157.25
65
Tb
Terbium
158.9253
66
Dy
Dysprosium
162.5
67
Ho
Holmium
164.9303
68
Er
Erbium
167.259
69
Tm
Thulium
168.9342
70
Yb
Ytterbium
173.04
71
Lu
Lutetium
174.967
Actinide
★★
89
Ac
Actinium
227
90
Th
Thorium
232.0381
91
Pa
Protactinium
231.0359
92
U
Uranium
238.0289
93
Np
Neptunium
237
94
Pu
Plutonium
244
95
Am
Americium
243
96
Cm
Curium
247
97
Bk
Berkelium
247
98
Cf
Californium
251
99
Es
Einsteinium
252
100
Fm
Fermium
257
101
Md
Mendelevium
258
102
No
Nobelium
259
103
Lr
Lawrencium
262