Gallium Ions:

Outer Shell Energy Diagram

¹S₀ to ¹P₁ transition:  141.4 nm (yikes!)

¹S₀ to ³P₂ transition:  205.1 nm

¹S₀ to ³P₁ transition:  209.1 nm

¹S₀ to ³P₀ transition:  211.1 nm