Arsenic is the 33rd element in the periodic table. See Tones of Arsenic for the blog description.

AngstromNanometersColorHertzNoteHertz
1890.43189Ultraviolet360.58F#4369.994
1937.59194Ultraviolet351.8
1972.62197Ultraviolet345.56F4239.228
2003.35200Ultraviolet340.25
2288.12228Ultraviolet297.91
2349.84235Ultraviolet290.08D4293.665
2370.77237Ultraviolet287.52
2456.53246Ultraviolet277.48C#4277.183
2780.22278Ultraviolet245.18B3246.942
2860.44286Ultraviolet238.3A#3233.082

All of the tones are in the ultra violet range for Arsenic.

Arsenic Scale

Arsenic Soundscape