Discovery of iridium

Discovery of iridium
Iridium is a chemical element with an atomic number of 77 and an atomic weight of 192.22. Iridium was discovered in 1803 as an insoluble impurity of platinum.

Discovery of iridium
Discovery of iridium
Iridium is a chemical element with an atomic number of 77 and an atomic weight of 192.22. Iridium was discovered in 1803 as an insoluble impurity of platinum.
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