1
H
Hydrogen
1.008
11
Na
Sodium
22.989
19
K
Potassium
39.098
37
Rb
Rubidium
85.468
55
Cs
Cesium
132.905
87
Fr
Francium
223.019
38
Sr
Strontium
87.6
56
Ba
Barium
137.33
88
Ra
Radium
226.025
39
Y
Yttrium
88.905
*
**
*
**
40
Zr
Zirconium
91.22
72
Hf
Hafnium
178.5
104
Rf
Rutherfordium
267.122
57
La
Lanthanum
138.9055
89
Ac
Actinium
227.027
41
Nb
Niobium
92.906
73
Ta
Tantalum
180.947
105
Db
Dubnium
268.126
58
Ce
Cerium
140.12
90
Th
Thorium
232.038
42
Mo
Molybdenum
96.0
74
W
Tungsten
183.8
106
Sg
Seaborgium
271.134
59
Pr
Praseodymium
140.907
91
Pa
Protactinium
231.035
43
Tc
Technetium
97.907
75
Re
Rhenium
186.21
107
Bh
Bohrium
274.144
60
Nd
Neodymium
144.24
92
U
Uranium
238.028
44
Ru
Ruthenium
101.1
76
Os
Osmium
190.2
108
Hs
Hassium
277.152
61
Pm
Promethium
144.912
93
Np
Neptunium
237.048
45
Rh
Rhodium
102.905
77
Ir
Iridium
192.22
109
Mt
Meitnerium
278.156
62
Sm
Samarium
150.4
94
Pu
Plutonium
244.064
46
Pd
Palladium
106.4
78
Pt
Platinum
195.08
110
Ds
Darmstadtium
281.165
63
Eu
Europium
151.96
95
Am
Americium
243.061
47
Ag
Silver
107.868
79
Au
Gold
196.966
111
Rg
Roentgenium
282.169
64
Gd
Gadolinium
157.2
96
Cm
Curium
247.070
48
Cd
Cadmium
112.41
80
Hg
Mercury
200.59
112
Cn
Copernicium
285.177
65
Tb
Terbium
158.925
97
Bk
Berkelium
247.070
49
In
Indium
114.82
81
Tl
Thallium
204.383
113
Nh
Nihonium
286.183
66
Dy
Dysprosium
162.50
98
Cf
Californium
251.079
50
Sn
Tin
118.71
82
Pb
Lead
207
114
Fl
Flerovium
289.191
67
Ho
Holmium
164.930
99
Es
Einsteinium
252.083
51
Sb
Antimony
121.76
83
Bi
Bismuth
208.980
115
Mc
Moscovium
290.196
68
Er
Erbium
167.26
100
Fm
Fermium
257.095
52
Te
Tellurium
127.6
84
Po
Polonium
208.982
116
Lv
Livermorium
293.205
69
Tm
Thulium
168.934
101
Md
Mendelevium
258.098
53
I
Iodine
126.904
85
At
Astatine
209.987
117
Ts
Tennessine
294.211
70
Yb
Ytterbium
173.04
102
No
Nobelium
259.101
54
Xe
Xenon
131.29
86
Rn
Radon
222.017
118
Og
Oganesson
294.214
71
Lu
Lutetium
174.967
103
Lr
Lawrencium
262.110
1
H
Hydrogen
1.008
Atomic number, Z
Element Symbol
Name
Atomic Mass, u
3
Li
Lithium
7.0
4
Be
Beryllium
9.012
12
Mg
Magnesium
24.305
20
Ca
Calcium
40.08
21
Sc
Scandium
44.955
22
Ti
Titanium
47.87
23
V
Vanadium
50.941
24
Cr
Chromium
51.996
25
Mn
Manganese
54.938
26
Fe
Iron
55.84
27
Co
Cobalt
58.933
28
Ni
Nickel
58.693
29
Cu
Copper
63.55
30
Zn
Zinc
65.4
31
Ga
Gallium
69.72
32
Ge
Germanium
72.63
33
As
Arsenic
74.921
34
Se
Selenium
78.97
35
Br
Bromine
79.90
36
Kr
Krypton
83.80
18
Ar
Argon
39.9
17
Cl
Chlorine
35.45
16
S
Sulfur
32.07
15
P
Phosphorus
30.973
14
Si
Silicon
28.085
13
Al
Aluminum
26.981
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
2
He
Helium
4.002
NONMETAL
ALKALI METAL
ALKALINE EARTH METAL
TRANSITION METAL
POST-TRANSITIONAL METAL
METALLOID
NOBLE GAS
LANTHANIDE
ACTINIDE
Periodic
Periodic
THE
of Elements
Table
Table
