NIST Atomic Spectroscopic Database
Ground States and Ionization Energies: Na
Sodium, Z = 11
- Na I
- Na I isoelectronic sequence
- Ground state 1s22s22p63s 2S1/2
- Ionization energy 41449.44 ± .03 cm-1
- References on
Energy Levels
- Na II
- Ne I isoelectronic sequence
- Ground state 1s22s22p6 1S0
- Ionization energy 381390.2 ± 2 cm-1
- References on
Energy Levels
- Na III
- F I isoelectronic sequence
- Ground state 1s22s22p5 2Pº3/2
- Ionization energy 577654 cm-1
- References on
Energy Levels
- Na IV
- O I isoelectronic sequence
- Ground state 1s22s22p4 3P2
- Ionization energy 797800 cm-1
- References on
Energy Levels
- Na V
- N I isoelectronic sequence
- Ground state 1s22s22p3 4Sº3/2
- Ionization energy 1116300 cm-1
- References on
Energy Levels
- Na VI
- C I isoelectronic sequence
- Ground state 1s22s22p2 3P0
- Ionization energy 1388750 ± 400 cm-1
- References on
Energy Levels
- Na VII
- B I isoelectronic sequence
- Ground state 1s22s22p 2Pº1/2
- Ionization energy 1681700 ± 250 cm-1
- References on
Energy Levels
- Na VIII
- Be I isoelectronic sequence
- Ground state 1s22s2 1S0
- Ionization energy 2131300 ± 250 cm-1
- References on
Energy Levels
- Na IX
- Li I isoelectronic sequence
- Ground state 1s22s 2S1/2
- Ionization energy 2418570 cm-1
- References on
Energy Levels
- Na X
- He I isoelectronic sequence
- Ground state 1s2 1S0
- Ionization energy 11816996 cm-1
- References on
Energy Levels
- Na XI
- H I isoelectronic sequence
- Ground state 1s 2S1/2
- Ionization energy 13297672 ± 2 cm-1
- References on
Energy Levels
