Chemistry Nexus
by WebElements: the periodic table on the web
Janet periodic table
The Janet periodic table is an excellent alternative periodic table and organises elements according to atomic orbital filling. Therefore, hydrogen is above lithium on the grounds they are both ns1, and helium above beryllium on the grounds they are both ns2. Current Group numbers are displayed to help orientation with the standard table.
| Group | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 1 | 2 | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Period | |||||||||||||||||||||||||||||||||
| 1 |
1
|
2
|
|||||||||||||||||||||||||||||||
| 1 |
3
|
4
|
|||||||||||||||||||||||||||||||
| 2 |
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
|||||||||||||||||||||||||
| 3 |
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
|||||||||||||||||||||||||
| 4 |
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
32
|
33
|
34
|
35
|
36
|
37
|
38
|
|||||||||||||||
| 5 |
39
|
40
|
41
|
42
|
43
|
44
|
45
|
46
|
47
|
48
|
49
|
50
|
51
|
52
|
53
|
54
|
55
|
56
|
|||||||||||||||
| 6 |
57
|
58
|
59
|
60
|
61
|
62
|
63
|
64
|
65
|
66
|
67
|
68
|
69
|
70
|
71
|
72
|
73
|
74
|
75
|
76
|
77
|
78
|
79
|
80
|
81
|
82
|
83
|
84
|
85
|
86
|
87
|
88
|
|
| 7 |
89
|
90
|
91
|
92
|
93
|
94
|
95
|
96
|
97
|
98
|
99
|
100
|
101
|
102
|
103
|
104
|
105
|
106
|
107
|
108
|
109
|
110
|
111
|
112
|
113
|
114
|
115
|
116
|
117
|
118
|
119
Uue
|
120
Ubn
|
|