Temperature View
State at STP
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Color by Property
Alkali Metals
Alkaline Earth Metals
Lanthanides
Actinides
Transition Metals
Post-transition Metals
Metalloids
Other Nonmetals
Halogens
Noble Gases
78
Pt
Platinum
195.1
Atomic Number
Symbol
Name
Atomic Mass
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
1
H
Hydrogen
1.008
2
He
Helium
4.002
3
Li
Lithium
6.94
4
Be
Beryllium
9.012
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
20.18
11
Na
Sodium
22.989
12
Mg
Magnesium
24.305
13
Al
Aluminum
26.981
14
Si
Silicon
28.085
15
P
Phosphorus
30.973
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
50.941
24
Cr
Chromium
51.996
25
Mn
Manganese
54.938
26
Fe
Iron
55.845
27
Co
Cobalt
58.933
28
Ni
Nickel
58.693
29
Cu
Copper
63.546
30
Zn
Zinc
65.379
31
Ga
Gallium
69.723
32
Ge
Germanium
72.63
33
As
Arsenic
74.921
34
Se
Selenium
78.971
35
Br
Bromine
79.904
36
Kr
Krypton
83.798
37
Rb
Rubidium
85.467
38
Sr
Strontium
87.62
39
Y
Yttrium
88.905
40
Zr
Zirconium
91.224
41
Nb
Niobium
92.906
42
Mo
Molybdenum
95.95
43
Tc
Technetium
(98)
44
Ru
Ruthenium
101.07
45
Rh
Rhodium
102.905
46
Pd
Palladium
106.42
47
Ag
Silver
107.868
48
Cd
Cadmium
112.414
49
In
Indium
114.818
50
Sn
Tin
118.71
51
Sb
Antimony
121.76
52
Te
Tellurium
127.6
53
I
Iodine
126.904
54
Xe
Xenon
131.293
55
Cs
Caesium
132.905
56
Ba
Barium
137.327
57
La
Lanthanum
138.905
58
Ce
Cerium
140.116
59
Pr
Praseodymium
140.907
60
Nd
Neodymium
144.242
61
Pm
Promethium
144.912
62
Sm
Samarium
150.36
63
Eu
Europium
151.964
64
Gd
Gadolinium
157.25
65
Tb
Terbium
158.925
66
Dy
Dysprosium
162.5
67
Ho
Holmium
164.93
68
Er
Erbium
167.259
69
Tm
Thulium
168.934
70
Yb
Ytterbium
173.054
71
Lu
Lutetium
174.966
72
Hf
Hafnium
178.49
73
Ta
Tantalum
180.947
74
W
Tungsten
183.84
75
Re
Rhenium
186.207
76
Os
Osmium
190.23
77
Ir
Iridium
192.217
78
Pt
Platinum
195.084
79
Au
Gold
196.966
80
Hg
Mercury
200.592
81
Tl
Thallium
204.383
82
Pb
Lead
207.2
83
Bi
Bismuth
208.98
84
Po
Polonium
208.982
85
At
Astatine
209.987
86
Rn
Radon
(222)
87
Fr
Francium
(223)
88
Ra
Radium
(226)
89
Ac
Actinium
(227)
90
Th
Thorium
232.037
91
Pa
Protactinium
231.035
92
U
Uranium
238.028
93
Np
Neptunium
237.048
94
Pu
Plutonium
244.064
95
Am
Americium
243.061
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
(271)
107
Bh
Bohrium
(270)
108
Hs
Hassium
(277)
109
Mt
Meitnerium
(278)
110
Ds
Darmstadtium
(281)
111
Rg
Roentgenium
282.169
112
Cn
Copernicium
285.177
113
Nh
Nihonium
286.182
114
Fl
Flerovium
289.19
115
Mc
Moscovium
290.196
116
Lv
Livermorium
(293)
117
Ts
Tennessine
(294)
118
Og
Oganesson
(294)