Periodic Table of Elements
Explore all 118 elements with detailed properties, electron configurations, isotopes, compounds, and chemical reactions. Your complete chemistry reference.
Periodic Table
View all elements →1H2He
3Li
4Be5B
6C
7N
8O
9F
10Ne
11Na
12Mg13Al
14Si
15P
16S
17Cl
18Ar
19K
20Ca
21Sc
22Ti
23V
24Cr
25Mn
26Fe
27Co
28Ni
29Cu
30Zn
31Ga
32Ge
33As
34Se
35Br
36Kr
37Rb
38Sr
39Y
40Zr
41Nb
42Mo
43Tc
44Ru
45Rh
46Pd
47Ag
48Cd
49In
50Sn
51Sb
52Te
53I
54Xe
55Cs
56Ba72Hf
73Ta
74W
75Re
76Os
77Ir
78Pt
79Au
80Hg
81Tl
82Pb
83Bi
84Po
85At
86Rn
87Fr
88Ra104Rf
105Db
106Sg
107Bh
108Hs
109Mt
110Ds
111Rg
112Cn
113Nh
114Fl
115Mc
116Lv
117Ts
118Og
Alkali Metals
6 elements
Alkaline Earth
6 elements
Transition Metals
38 elements
Post-Transition
9 elements
Metalloids
7 elements
Reactive Nonmetals
9 elements
Halogens
6 elements
Noble Gases
7 elements
Lanthanides
15 elements
Actinides
15 elements
Explore Chemistry
Elements
Detailed profiles for all 118 elements with properties, electron configurations, history, and uses.
118 pages
Isotopes
Comprehensive isotope database with half-lives, decay modes, abundance data from IAEA.
3,383 pages
Compounds
Chemical compounds with molecular properties, structures, safety data, and PubChem references.
5800 pages
Reactions
Chemical reactions with balanced equations, reaction types, mechanisms, and energy profiles.
136 pages
Comparisons
Side-by-side comparisons of elements with property tables, reactivity, and applications.
7021 pages
Quizzes
Test your chemistry knowledge with interactive quizzes for each element.
119 quizzes