The Periodic Table of Elements
Click any element for details
57-71
89-103
1H1.008
2He4.003
3Li6.941
4Be9.012
5B10.81
6C12.01
7N14.01
8O16.00
9F19.00
10Ne20.18
11Na22.99
12Mg24.31
13Al26.98
14Si28.09
15P30.97
16S32.07
17Cl35.45
18Ar39.95
19K39.10
20Ca40.08
21Sc44.96
22Ti47.87
23V50.94
24Cr52.00
25Mn54.94
26Fe55.85
27Co58.93
28Ni58.69
29Cu63.55
30Zn65.38
31Ga69.72
32Ge72.63
33As74.92
34Se78.97
35Br79.90
36Kr83.80
37Rb85.47
38Sr87.62
39Y88.91
40Zr91.22
41Nb92.91
42Mo95.95
43Tc(98)
44Ru101.1
45Rh102.9
46Pd106.4
47Ag107.9
48Cd112.4
49In114.8
50Sn118.7
51Sb121.8
52Te127.6
53I126.9
54Xe131.3
55Cs132.9
56Ba137.3
57La138.9
58Ce140.1
59Pr140.9
60Nd144.2
61Pm(145)
62Sm150.4
63Eu152.0
64Gd157.3
65Tb158.9
66Dy162.5
67Ho164.9
68Er167.3
69Tm168.9
70Yb173.0
71Lu175.0
72Hf178.5
73Ta180.9
74W183.8
75Re186.2
76Os190.2
77Ir192.2
78Pt195.1
79Au197.0
80Hg200.6
81Tl204.4
82Pb207.2
83Bi209.0
84Po(209)
85At(210)
86Rn(222)
87Fr(223)
88Ra(226)
89Ac(227)
90Th232.0
91Pa231.0
92U238.0
93Np(237)
94Pu(244)
95Am(243)
96Cm(247)
97Bk(247)
98Cf(251)
99Es(252)
100Fm(257)
101Md(258)
102No(259)
103Lr(266)
104Rf(267)
105Db(268)
106Sg(269)
107Bh(270)
108Hs(277)
109Mt(278)
110Ds(281)
111Rg(282)
112Cn(285)
113Nh(286)
114Fl(289)
115Mc(290)
116Lv(293)
117Ts(294)
118Og(294)
Alkali MetalsAlkaline EarthTransition MetalsPost-TransitionMetalloidsNonmetalsHalogensNoble GasesLanthanidesActinides
What is the Periodic Table?
The Periodic Table of Elements is the foundation of chemistry. First published by Dmitri Mendeleev in 1869, it organizes all known chemical elements by increasing atomic number, grouping them into periods (rows) and groups (columns) based on their electron configuration and recurring chemical properties.
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118 Elements
From Hydrogen (H) to Oganesson (Og), every building block of matter in one chart.
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7 Periods & 18 Groups
Elements in the same group share similar chemical behavior and valence electrons.
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Color-Coded Categories
10 categories visually distinguished at a glance.
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Click for Details
Click any element to see electron configuration, phase, discovery year, and more.
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