Discovery of rubidium

Rubidium is a chemical element; it has symbol Rb and atomic number 37. It is a very soft, whitish-grey solid in the alkali metal group, similar to potassium and caesium. Rubidium is the first alkali metal in the group to have a density higher than water.

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

Which happened first?

• Discovery of rubidium and Discovery of thallium happened in the same year
• Discovery of rubidium happened 1 year after Discovery of caesium
• Discovery of rubidium happened 2 years before Discovery of indium
• Discovery of rubidium happened 7 years before Discovery of helium
• Discovery of rubidium happened 14 years before Discovery of gallium

Timeline

1. Discovery of caesium1860
2. Discovery of rubidium (this page)1861
3. Discovery of thallium1861
4. Discovery of indium1863
5. Discovery of heliumAugust 18, 1868
6. Discovery of gallium1875

Related

• Discovery of hydrogen1766
• Discovery of oxygen1774
• Discovery of PlutoFebruary 18, 1930
• Discovery of carbon1789
• Discovery of aluminium1825
• Discovery of nitrogen1772
• Discovery of sulfur1777
• Discovery of lithium1817