Discovery of selenium

Selenium is a chemical element; it has symbol Se and atomic number 34. It has various physical appearances, including a brick-red powder, a vitreous black solid, and a grey metallic-looking form. It seldom occurs in this elemental state or as pure ore compounds in Earth's crust.

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

Which happened first?

• Discovery of selenium and Discovery of cadmium happened in the same year
• Discovery of selenium and Discovery of lithium happened in the same year
• Discovery of selenium happened 6 years after Discovery of iodine
• Discovery of selenium happened 6 years before Discovery of silicon
• Discovery of selenium happened 7 years after Discovery of fluorine

Timeline

1. Discovery of fluorine1810
2. Discovery of iodine1811
3. Discovery of cadmium1817
4. Discovery of lithium1817
5. Discovery of selenium (this page)1817
6. Discovery of silicon1823

Related

• Discovery of hydrogen1766
• Discovery of oxygen1774
• Discovery of PlutoFebruary 18, 1930
• Discovery of carbon1789
• Discovery of aluminium1825
• Discovery of heliumAugust 18, 1868
• Discovery of nitrogen1772
• Discovery of sulfur1777