Wavelength Energy Configuration Term J (Å) Levels (cm-1)
3957.85 5458.850 5f26d7s 5K 7 30717.935 ° 7 return 4056.20 823.265 5f26d7s 5K 5 25469.955 ° 5 return 4070.40 return 4217.23 1764.365 5f26d7s 5K 6 25469.955 ° 5 return 4248.083 0.000 5f27s2 3H 4 23533.415 ° 5 return