Periodic Table of Elements
1H1
2He4
3Li7
4Be9
10Ne20
9F19
8O16
7N14
6C12
5B11
11Na23
12Mg24
18Ar40
17Cl35,3
16S32
15P31
14Si28
13Al27
19K39
20Ca40
21Sc45
22Ti48
23V51
24Cr52
25Mn55
26Fe56
27Co59
28Ni59
29Cu63,5
30Zn65
31Ga70
32Ge73
33As75
34Se79
35Br80
36Kr84
37Rb85
38Sr88
39Y89
40Zr91
41Nb93
42Mo96
43Tc98
44Ru101
45Rh103
46Pd106
47Ag108
48Cd112
49In115
50Sn119
51Sb122
52Te128
53I127
54Xe131
55Cs133
56Ba137
57-71lanthonoids
72Zr178
73Nb181
74Mo184
75Tc186
76Ru190
76Rh192
78Pd195
79Ag197
80Cd201
81Tl204
82Pb207
83Bi209
84Po209
85At210
86Rn222
87Fr223
88Ra226
89-103actinoids
104Rf265
105Db268
106Sg271
107Bh270
108Hs277
109Mt276
110Ds281
111Rg280
112Cn285
113Nh286
114Fl289
115Mc289
115Lv293
117Ts294
118Og294

Drag the dots into the circles provided
to complete the Lewis diagram

  1. Click on any of the elements in the coloured blocks to build its Lewis diagram.
  2. Drag the provided electron dots into the circles.
  3. Make sure you use the correct number of valence electrons and pair the dots correctly.
  4. Click the CHECK button to see whether your diagram is correct.