Properties | More Info | Isotopes | Spectra
Compounds | Reactions | Production
Atomic: M.A.C. | Reference
Diagrams: Shell | Atomic Radius | Electron || Images
Vacuum Wavelengths
Intensity Wavelength Spectrum
15 231.4541 He II
20 232.5842 He II
30 234.3472 He II
50 237.3307 He II
100 243.0266 He II
300 256.3166 He II
150 256.3177 He II
1000 303.7804 He II
500 303.7858 He II
10 320.293 He I
2 505.50035 He I
3 505.68433 He I
4 505.91252 He I
5 506.20034 He I
7 506.57057 He I
10 507.05802 He I
15 507.71809 He I
20 508.64338 He I
25 509.99829 He I
35 512.09856 He I
50 515.61684 He I
100 522.21309 He I
400 537.02992 He I
1000 584.33436 He I
50 591.41207 He I
5 958.70 He II
6 972.11 He II
8 992.36 He II
15 1025.27 He II
30 1084.94 He II
35 1215.09 He II
50 1215.17 He II
120 1640.3321 He II
50 1640.3447 He II
7 1640.3750 He II
25 1640.3914 He II
180 1640.4742 He II
25 1640.4897 He II
15 1640.5326 He II
Air Wavelengths
Intensity Wavelength Spectrum
7 2385.40 He II
9 2511.20 He II
1 2723.19 He I
12 2733.30 He II
2 2763.80 He I
10 2818.2 He I
4 2829.08 He I
10 2945.11 He I
40 3013.7 He I
20 3187.74 He I
15 3203.10 He II
1 3354.55 He I
2 3447.59 He I
1 3587.27 He I
3 3613.64 He I
2 3634.23 He I
3 3705.00 He I
1 3732.86 He I
10 3819.607 He I
1 3819.76 He I
60 3888.6046 He I
200 3888.6456 He I
300 3888.6489 He I
20 3964.729 He I
1 4009.27 He I
50 4026.191 He I
5 4026.36 He I
12 4120.82 He I
2 4120.99 He I
3 4143.76 He I
10 4387.929 He I
3 4437.55 He I
200 4471.479 He I
25 4471.68 He I
4 4685.3769 He II
3 4685.4072 He II
15* 4685.7038 He II
15* 4685.7044 He II
12 4685.8041 He II
30 4713.146 He I
4 4713.38 He I
20 4921.931 He I
100 5015.678 He I
10 5047.74 He I
5 5411.52 He II
500 5875.6148 He I
250 5875.6404 He I
120 5875.9663 He I
8 6560.10 He II
200 6678.1517 He I
3 6867.48 He I
100 7065.1771 He I
60 7065.2153 He I
20 7065.7086 He I
50 7281.35 He I
1 7816.15 He I
2 8361.69 He I
2 9063.27 He I
2 9210.34 He I
10 9463.61 He I
4 9516.60 He I
3 9526.17 He I
1 9529.27 He I
1 9603.42 He I
3 9702.60 He I
6 10027.73 He I
2 10031.16 He I
15 10123.6 He II
1 10138.50 He I
10 10311.23 He I
2 10311.54 He I
3 10667.65 He I
150 10829.0911 He I
500 10830.2501 He I
1000 10830.3398 He I
9 10913.05 He I
3 10917.10 He I
4 11626.4 He II
30 11969.12 He I
20 12527.52 He I
50 12784.99 He I
20 12790.57 He I
7 12845.96 He I
10 12968.45 He I
2 12984.89 He I
12 15083.64 He I
200 17002.47 He I
1 18555.55 He I
6 18636.8 He II
500 18685.34 He I
200 18697.23 He I
100 19089.38 He I
20 19543.08 He I
500 20581.287 He I
80 21120.07 He I
10 21121.43 He I
20 21132.03 He I
3 30908.5 He II
4 40478.90 He I