NIST Atomic Spectroscopic Database
Ground States and Ionization Energies: Al
Aluminum, Z = 13
- Al I
- Al I isoelectronic sequence
- Ground state 1s22s22p63s23p 2Pº1/2
- Ionization energy 48278.48 ± .025 cm-1
- References on
Energy Levels,
Wavelengths
- Al II
- Mg I isoelectronic sequence
- Ground state 1s22s22p63s2 1S0
- Ionization energy 151862.5 ± .4 cm-1
- References on
Energy Levels,
Wavelengths
- Al III
- Na I isoelectronic sequence
- Ground state 1s22s22p63s 2S1/2
- Ionization energy 229445.7 ± .2 cm-1
- References on
Energy Levels,
Wavelengths
- Al IV
- Ne I isoelectronic sequence
- Ground state 1s22s22p6 1S0
- Ionization energy 967804 ± 15 cm-1
- References on
Energy Levels,
Wavelengths
- Al V
- F I isoelectronic sequence
- Ground state 1s22s22p5 2Pº3/2
- Ionization energy 1240684 ± 20 cm-1
- References on
Energy Levels,
Wavelengths
- Al VI
- O I isoelectronic sequence
- Ground state 1s22s22p4 3P2
- Ionization energy 1536400 ± 400 cm-1
- References on
Energy Levels,
Wavelengths
- Al VII
- N I isoelectronic sequence
- Ground state 1s22s22p3 4Sº3/2
- Ionization energy 1949900 ± 700 cm-1
- References on
Energy Levels,
Wavelengths
- Al VIII
- C I isoelectronic sequence
- Ground state 1s22s22p2 3P0
- Ionization energy 2295900 ± 500 cm-1
- References on
Energy Levels,
Wavelengths
- Al IX
- B I isoelectronic sequence
- Ground state 1s22s22p 2Pº1/2
- Ionization energy 2662650 ± 600 cm-1
- References on
Energy Levels,
Wavelengths
- Al X
- Be I isoelectronic sequence
- Ground state 1s22s2 1S0
- Ionization energy 3216100 cm-1
- References on
Energy Levels,
Wavelengths
- Al XI
- Li I isoelectronic sequence
- Ground state 1s22s 2S1/2
- Ionization energy 3564960 ± 250 cm-1
- References on
Energy Levels,
Wavelengths
- Al XII
- He I isoelectronic sequence
- Ground state 1s2 1S0
- Ionization energy 16824529 ± 250 cm-1
- References on
Energy Levels,
Wavelengths
- Al XIII
- H I isoelectronic sequence
- Ground state 1s 2S1/2
- Ionization energy 18584144 ± 2 cm-1
- References on
Energy Levels,
Wavelengths
