Ground States and Ionization Energies: Sc

NIST Atomic Spectroscopic Database

Ground States and Ionization Energies: Sc

Scandium, Z = 21

Sc I

Sc I isoelectronic sequence

Ground state 1s²2s²2p⁶3s²3p⁶3d4s² ²D_3/2

Ionization energy 52922.0 ± 0.5 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc II

Ca I isoelectronic sequence

Ground state 1s²2s²2p⁶3s²3p⁶3d4s ³D₁

Ionization energy 103237.1 ± 2 cm^-¹

References on Energy Levels, Wavelengths,
Transition Probabilities

Sc III

K I isoelectronic sequence

Ground state 1s²2s²2p⁶3s²3p⁶3d ²D_3/2

Ionization energy 199677.37 ± 0.1 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc IV

Ar I isoelectronic sequence

Ground state 1s²2s²2p⁶3s²3p⁶ ¹S₀

Ionization energy 592732 ± 3 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc V

Cl I isoelectronic sequence

Ground state 1s²2s²2p⁶3s²3p⁵ ²Pº_3/2

Ionization energy 739500 ± 1000 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc VI

S I isoelectronic sequence

Ground state 1s²2s²2p⁶3s²3p⁴ ³P₂

Ionization energy 892700 ± 400 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc VII

P I isoelectronic sequence

Ground state 1s²2s²2p⁶3s²3p³ ⁴Sº_3/2

Ionization energy 1113000 ± 2000 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc VIII

Si I isoelectronic sequence

Ground state 1s²2s²2p⁶3s²3p² ³P₀

Ionization energy 1275000 ± 2000 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc IX

Al I isoelectronic sequence

Ground state 1s²2s²2p⁶3s²3p ²Pº_1/2

Ionization energy 1452000 ± 1000 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc X

Mg I isoelectronic sequence

Ground state 1s²2s²2p⁶3s² ¹S₀

Ionization energy 1816200 ± 400 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc XI

Na I isoelectronic sequence

Ground state 1s²2s²2p⁶3s ²S_1/2

Ionization energy 2014760 ± 100 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc XII

Ne I isoelectronic sequence

Ground state 1s²2s²2p⁶ ¹S₀

Ionization energy 5543900 ± 1000 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc XIII

F I isoelectronic sequence

Ground state 1s²2s²2p⁵ ²Pº_3/2

Ionization energy 6103000 ± 12000 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc XIV

O I isoelectronic sequence

Ground state 1s²2s²2p⁴ ³P₂

Ionization energy 6701000 ± 13000 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc XV

N I isoelectronic sequence

Ground state 1s²2s²2p³ ⁴Sº_3/2

Ionization energy 7481000 ± 15000 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc XVI

C I isoelectronic sequence

Ground state 1s²2s²2p² ³P₀

Ionization energy 8140000 ± 16000 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc XVII

B I isoelectronic sequence

Ground state 1s²2s²2p ²Pº_1/2

Ionization energy 8820000 ± 20000 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc XVIII

Be I isoelectronic sequence

Ground state 1s²2s² ¹S₀

Ionization energy 9780000 ± 20000 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc XIX

Li I isoelectronic sequence

Ground state 1s²2s ²S_1/2

Ionization energy 10388200 ± 3000 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc XX

He I isoelectronic sequence

Ground state 1s² ¹S₀

Ionization energy 45770000 ± 9000 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

Sc XXI

H I isoelectronic sequence

Ground state 1s ²S_1/2

Ionization energy 48665520 ± 20 cm^-¹

References on Energy Levels, Wavelengths, Transition Probabilities

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