0. 243520. +X 2s2p 3P 2s2p 3P 1. 252520. +X 2s2p 3P 2s2p 3P 1. 484800. 2s2p 1P 2s2p 1P 1. 4563900. 2s3p 1P 2s3p 1P 2. 274090. +X 2s2p 3P 2s2p 3P 2. 4958000. +X 2p3d 3D 2p3d 3D 3. 4965600. +X 2p3d 3D 2p3d 3D 3. 5016300. 2p3d 1F 2p3d 1F