1
2
3
Nonmetal
H
Noble Gas
He
Alkali Metal
1.008
4.003
6.941
Hydrogen
Helium
Lithium
4
5
6
Alkaline Earth
Semimetal
Nonmetal
9.012
10.811
12.011
Beryllium
Boron
Carbon
Be
B
Li
C
7
8
9
Nonmetal
Nonmetal
Halogen
14.007
15.999
18.998
Nitrogen
Oxygen
Fluorine
10
11
12
Noble Gas
Alkali Metal
Alkaline Earth
N
O
F
Ne
Na
Mg
20.180
22.990
24.305
Neon
Sodium
Magnesium
13
14
15
Basic Metal
Semimetal
Nonmetal
26.982
28.086
30.974
Aluminum
Silicon
Phosphorus
16
17
18
Nonmetal
Halogen
Noble Gas
32.066
35.453
39.948
Sulfur
Chlorine
Argon
Al
S
Si
Cl
P
Ar
19
20
21
Alkali Metal
Alkaline Earth
Transition Metal
39.098
40.078
44.956
Potassium
Calcium
Scandium
22
23
24
Transition Metal
Transition Metal
Transition Metal
47.88
50.942
51.996
Titanium
Vanadium
Chromium
K
Ti
Ca
V
Sc
Cr
25
26
27
Transition Metal
Transition Metal
Transition Metal
54.938
55.845
58.933
Manganese
Iron
Cobalt
28
29
30
Transition Metal
Transition Metal
Transition Metal
58.693
63.546
65.38
Nickel
Copper
Zinc
Mn
Ni
Fe
Cu
Co
Zn
31
32
33
Basic Metal
Ga
Semimetal
Ge
Semimetal
69.723
72.631
74.922
Gallium
Germanium
Arsenic
34
35
36
Nonmetal
Se
Halogen
Br
Noble Gas
78.971
79.904
83.798
Selenium
Bromine
Krypton
As
Kr
37
38
39
Alkali Metal
Alkaline Earth
Transition Metal
85.468
87.62
88.906
Rubidium
Strontium
Yttrium
40
41
42
Transition Metal
Transition Metal
Transition Metal
91.224
92.906
95.95
Zirconium
Niobium
Molybdenum
Rb
Zr
Sr
Nb
Y
Mo
43
44
45
Transition Metal
Transition Metal
Transition Metal
98.907
101.07
102.906
Technetium
Ruthenium
Rhodium
46
47
48
Transition Metal
Transition Metal
Transition Metal
106.42
107.868
112.414
Palladium
Silver
Cadmium
Tc
Pd
Ru
Ag
Rh
Cd
49
50
51
Basic Metal
Basic Metal
Sn
Semimetal
Sb
114.818
118.711
121.760
Indium
Tin
Antimony
52
53
54
Semimetal
Halogen
I
Noble Gas
Xe
127.6
126.904
131.294
Tellurium
Iodine
Xenon
In
Te
55
56
57
Alkali Metal
Alkaline Earth
Lanthanide
132.905
137.328
138.905
Cesium
Barium
Lanthanum
58
59
60
Lanthanide
Lanthanide
Pr
Lanthanide
Nd
140.116
140.908
144.243
Cerium
Praseodymium
Neodymium
Cs
Ce
Ba
La
61
62
63
Lanthanide
Pm
Lanthanide
Sm
Lanthanide
144.913
150.36
151.964
Promethium
Samarium
Europium
64
65
66
Lanthanide
Lanthanide
Tb
Lanthanide
Dy
157.25
158.925
162.500
Gadolinium
Terbium
Dysprosium
Gd
Eu
67
68
69
Lanthanide
Lanthanide
Er
Lanthanide
Tm
164.930
167.259
168.934
Holmium
Erbium
Thulium
70
71
72
Lanthanide
Lanthanide
Transition Metal
173.055
174.967
178.49
Ytterbium
Lutetium
Hafnium
Ho
Yb
Lu
Hf
73
74
75
Transition Metal
Transition Metal
Transition Metal
180.948
183.85
186.207
Tantalum
Tungsten
Rhenium
76
77
78
Transition Metal
Transition Metal
Transition Metal
190.23
192.22
195.08
Osmium
Iridium
Platinum
Ta
Os
W
Ir
Re
Pt
79
80
81
Transition Metal
Transition Metal
Basic Metal
196.967
200.59
204.383
Gold
Mercury
Thallium
82
83
84
Basic Metal
Basic Metal
Bi
Semimetal
Po
207.2
208.980
[208.982]
Lead
Bismuth
Polonium
Au
Pb
Hg
Tl
85
86
87
Halogen
At
Noble Gas
Rn
Alkali Metal
209.987
222.018
223.020
Astatine
Radon
Francium
88
89
90
Alkaline Earth
Actinide
Actinide
Fr
Ra
Ac
Th
226.025
227.028
232.038
Radium
Actinium
Thorium
91
92
93
Actinide
Actinide
U
Actinide
Np
231.036
238.029
237.048
Protactinium
Uranium
Neptunium
94
95
96
Actinide
Actinide
Actinide
Pa
Pu
Am
Cm
244.064
243.061
247.070
Plutonium
Americium
Curium
97
98
99
Actinide
Actinide
Actinide
Bk
Cf
Es
247.070
251.080
[254]
Berkelium
Californium
Einsteinium
100
101
102
Actinide
Actinide
Actinide
Fm
Md
No
257.095
258.1
259.101
Fermium
Mendelevium
Nobelium
103
104
105
Actinide
Transition Metal
Transition Metal
[262]
[261]
[262]
Lawrencium
Rutherfordium
Dubnium
106
107
108
Transition Metal
Transition Metal
Transition Metal
[266]
[264]
[269]
Seaborgium
Bohrium
Hassium
Lr
Sg
Rf
Bh
Db
Hs
109
110
111
Transition Metal
Transition Metal
Transition Metal
[278]
[281]
[280]
Meitnerium
Darmstadtium
Roentgenium
112
113
114
Transition Metal
Cn
Basic Metal
Nh
Basic Metal
[285]
[286]
[289]
Copernicium
Nihonium
Flerovium
Mt
Ds
Rg
Fl
115
116
117
Basic Metal
Basic Metal
Lv
Halogen
Ts
[289]
[293]
[294]
Moscovium
Livermorium
Tennessine
Mc
118
Noble Gas
Og
[294]
Oganesson
0