Atomic levels He ions I II He 3He 4He

Table lookup:

from
to
Energy:
ConfigurationType:
Configuration:
Term:
J value:
ConfigurationType Configuration Term J F Energy (cm -1) Lifetime
(ns)
Source
2s@{2} 2s@{2} 2 S 156197 10236
2snp 2s2p 2 P 164537 10236
2p@{2} 2p@{2} 4 P 169078 10236
2p@{2} 2p@{2} 2 D 169376 10236
3s@{2} 3s@{2} 2 S 180990 10236
3snp 3s3p 2 P 182281 10236
3snd 3s3d 2 D 182765 10236
3s p 3s p 2 P 183410 10236
3s s 3s s 2 S 184539 10236
3p@{2} 3p@{2} 2 D 184942 10236
? (?) 2 F 185426 10236
? (?) 2 G 185910 10236