1
H
Hydrogen
1.008
1
  • Hydrogen
  • diatomic nonmetal
  • Gas
  • 1.008 u
  • 1
  • 2.2
  • HEX
  • 13.99
  • 20.271
  • 72.769
  • 1312
  • 53
  • n/a
  • n/a
  • 0.08988
  • 0.1805 W/(m K)
  • 14,300 J/(kg K)
  • Diamagnetic
  • 75%
  • 1766 CE
K
°C
°F
Solid
Liquid
Gas
Unknown
Metals
alkali metal
alkaline earth metal
transition metal
post-transition metal
lanthanide
actinide
Metalloids
metalloid
Other
unknown
Nonmetals
diatomic nonmetal
polyatomic nonmetal
noble gas
Atomic
Symbol
Name
Weight
12345678910111213141516171812345678
57-71
89-103
Pnictogens
Chalcogens
Halogens
1
H
Hydrogen
1.008
2
He
Helium
4.0026022
3
Li
Lithium
6.94
4
Be
Beryllium
9.01218315
5
B
Boron
10.81
6
C
Carbon
12.011
7
N
Nitrogen
14.007
8
O
Oxygen
15.999
9
F
Fluorine
18.9984031636
10
Ne
Neon
20.17976
11
Na
Sodium
22.989769282
12
Mg
Magnesium
24.305
13
Al
Aluminium
26.98153857
14
Si
Silicon
28.085
15
P
Phosphorus
30.9737619985
16
S
Sulfur
32.06
17
Cl
Chlorine
35.45
18
Ar
Argon
39.9481
19
K
Potassium
39.09831
20
Ca
Calcium
40.0784
21
Sc
Scandium
44.9559085
22
Ti
Titanium
47.8671
23
V
Vanadium
50.94151
24
Cr
Chromium
51.99616
25
Mn
Manganese
54.9380443
26
Fe
Iron
55.8452
27
Co
Cobalt
58.9331944
28
Ni
Nickel
58.69344
29
Cu
Copper
63.5463
30
Zn
Zinc
65.382
31
Ga
Gallium
69.7231
32
Ge
Germanium
72.6308
33
As
Arsenic
74.9215956
34
Se
Selenium
78.9718
35
Br
Bromine
79.904
36
Kr
Krypton
83.7982
37
Rb
Rubidium
85.46783
38
Sr
Strontium
87.621
39
Y
Yttrium
88.905842
40
Zr
Zirconium
91.2242
41
Nb
Niobium
92.906372
42
Mo
Molybdenum
95.951
43
Tc
Technetium
(98)
44
Ru
Ruthenium
101.072
45
Rh
Rhodium
102.905502
46
Pd
Palladium
106.421
47
Ag
Silver
107.86822
48
Cd
Cadmium
112.4144
49
In
Indium
114.8181
50
Sn
Tin
118.7107
51
Sb
Antimony
121.7601
52
Te
Tellurium
127.603
53
I
Iodine
126.904473
54
Xe
Xenon
131.2936
55
Cs
Cesium
132.905451966
56
Ba
Barium
137.3277
57
La
Lanthanum
138.905477
58
Ce
Cerium
140.1161
59
Pr
Praseodymium
140.907662
60
Nd
Neodymium
144.2423
61
Pm
Promethium
(145)
62
Sm
Samarium
150.362
63
Eu
Europium
151.9641
64
Gd
Gadolinium
157.253
65
Tb
Terbium
158.925352
66
Dy
Dysprosium
162.5001
67
Ho
Holmium
164.930332
68
Er
Erbium
167.2593
69
Tm
Thulium
168.934222
70
Yb
Ytterbium
173.0451
71
Lu
Lutetium
174.96681
72
Hf
Hafnium
178.492
73
Ta
Tantalum
180.947882
74
W
Tungsten
183.841
75
Re
Rhenium
186.2071
76
Os
Osmium
190.233
77
Ir
Iridium
192.2173
78
Pt
Platinum
195.0849
79
Au
Gold
196.9665695
80
Hg
Mercury
200.5923
81
Tl
Thallium
204.38
82
Pb
Lead
207.21
83
Bi
Bismuth
208.980401
84
Po
Polonium
(209)
85
At
Astatine
(210)
86
Rn
Radon
(222)
87
Fr
Francium
(223)
88
Ra
Radium
(226)
89
Ac
Actinium
(227)
90
Th
Thorium
232.03774
91
Pa
Protactinium
231.035882
92
U
Uranium
238.028913
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
(266)
104
Rf
Rutherfordium
(267)
105
Db
Dubnium
(268)
106
Sg
Seaborgium
(269)
107
Bh
Bohrium
(270)
108
Hs
Hassium
(269)
109
Mt
Meitnerium
(278)
110
Ds
Darmstadtium
(281)
111
Rg
Roentgenium
(282)
112
Cn
Copernicium
(285)
113
Nh
Nihonium
(286)
114
Fl
Flerovium
(289)
115
Mc
Moscovium
(289)
116
Lv
Livermorium
(293)
117
Ts
Tennessine
(294)
118
Og
Oganesson
(294)
119
Uue
Ununennium
(315)