Periodic table shop Printable periodic table

Atomic spectra

When atoms in the gas phase by an electric discharge are excited they emit light. Each element produces a unique set of emitted wavelengths of different colours. The appearance of the resulting atomic spectra after splitting by a prism is a series of lines (a line spectrum) against a dark background.

Units

None

Notes

The atomic spectra images (simulated electrical gas discharge spectra) were produced using a modified version of discharge.java ( John Talbot, 1997) using data derived from a data collection published by NASA generated from reference 2.

Literature sources

  1. Discharge.java: an applet written by John Talbot, 1997.
  2. J. Reader J. and C.H. Corliss, CRC Handbook of Chemistry and Physics, 1980-1.
Explore the element of your choice through this periodic table.
1 2   3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
S
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
*
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
**
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
 
*Lanthanoids *
57
58
59
60
61
62
63
64
65
66
67
68
69
70
**Actinoids **
89
90
91
92
93
94
95
96
97
98
99
100
101
102