Which Happened First?

Discovery of iodine

Discovery of iodine
Image: LHcheM · CC BY-SA 3.0 · source

Iodine is a chemical element; it has symbol I and atomic number 53. The heaviest of the stable halogens, it exists at standard conditions as a semi-lustrous, non-metallic solid that melts to form a deep violet liquid at 114 °C (237 °F), and boils to a violet gas at 184 °C (363 °F).

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Which happened first?

Timeline

  1. Discovery of sodium1807
  2. Discovery of VestaMarch 29, 1807
  3. Discovery of barium1808
  4. Discovery of calcium1808
  5. Discovery of fluorine1810
  6. Discovery of iodine (this page)1811

Related

Play a round with Science · 19th century