Interactive Periodic Table

Explore trends, compare properties, and discover exceptions

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
57-71
89-103
1
H
1.008
2
He
4.000
3
Li
6.940
4
Be
9.010
5
B
10.81
6
C
12.01
7
N
14.01
8
O
16.00
9
F
19.00
10
Ne
20.18
11
Na
22.99
12
Mg
24.31
13
Al
26.98
14
Si
28.09
15
P
30.97
16
S
32.06
17
Cl
35.45
18
Ar
39.95
19
K
39.10
20
Ca
40.08
31
Ga
69.72
32
Ge
72.60
33
As
74.92
34
Se
78.96
35
Br
79.90
36
Kr
83.80
21
Sc
44.96
22
Ti
47.87
23
V
50.94
24
Cr
52.00
25
Mn
54.94
26
Fe
55.84
27
Co
58.93
28
Ni
58.69
29
Cu
63.55
30
Zn
65.38
37
Rb
85.47
38
Sr
87.62
49
In
114.82
50
Sn
118.71
51
Sb
121.75
52
Te
127.60
53
I
126.90
54
Xe
131.30
55
Cs
132.91
56
Ba
137.33
81
Tl
204.38
82
Pb
207.20
83
Bi
208.98
84
Po
210.00
85
At
210.00
86
Rn
222.00
39
Y
88.91
40
Zr
91.22
41
Nb
92.91
42
Mo
95.95
43
Tc
98.00
44
Ru
101.07
45
Rh
102.91
46
Pd
106.42
47
Ag
107.87
48
Cd
112.41
72
Hf
178.49
74
W
183.84
78
Pt
195.08
79
Au
196.97
80
Hg
200.59
57
La
138.91
58
Ce
140.12
59
Pr
140.91
60
Nd
144.24
61
Pm
145.00
62
Sm
150.36
63
Eu
151.96
64
Gd
157.25
65
Tb
158.93
66
Dy
162.50
67
Ho
164.93
68
Er
167.26
69
Tm
168.93
70
Yb
173.05
71
Lu
174.97
89
Ac
227.00
90
Th
232.04
91
Pa
231.04
92
U
238.03
93
Np
237.00
94
Pu
244.00
95
Am
243.00
96
Cm
247.00
97
Bk
247.00
98
Cf
251.00
99
Es
252.00
100
Fm
257.00
101
Md
258.00
102
No
259.00
103
Lr
266.00
87
Fr
223.00
88
Ra
226.00
Lanthanides
Actinides
Alkali Metal
Alkaline Earth Metal
Transition Metal
Post-Transition Metal
Metalloid
Reactive Nonmetal
Noble Gas
Lanthanide
Actinide
How to Use
  • • Hover over elements to see details
  • • Click to pin an element
  • • Double-click to compare (up to 4)
  • • Use Trends to see property heatmaps
  • • Exceptions mode shows chemistry exceptions

Memory Practice

Test your memory! Place elements in their correct positions.