Iodine

Iodine fluorescence in cuvette

The Fluorescence Spectrum of Iodine

6 Minute ReadIntroduction In two earlier posts on this site we recorded the absorption spectrum of molecular iodine I2 with some simple instrumentation. The first section outlined the basic theory giving rise to the vibrational absorption bands in the spectrum of any diatomic molecule. The second section described how the home experimenter can produce an absorption spectrum […]

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Iodine vapour in cuvette

The Iodine Absorption Spectrum – Part 1

11 Minute ReadIntroduction Iodine. Atomic number 53. Chemical symbol I. Iodine is the rarest of the stable halogens, if we ignore the radioactive elements Astatine (At) and the recently discovered (in 2010) element Tennessine (symbol Ts). Both are extremely rare and extremely unstable. Iodine is situated in Group 17 of the Periodic Table – for older students

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