Caesium: 1860
Rubidium: 1861
Francium: 1939
Cesium was discovered in Germany by Robert Bunsen and Gustav Kirchhoff in 1860.
Caesium was discovered in 1860.
It was discovered in the 1860's.
It was discovered by Robert Bunsen and Gustav Kirchoff in 1860.
Discovered by Balard in 1826, but not prepared in quantity until 1860.
63 elements had been discovered so far.
Baron Carl Von Rokitansky in 1860
neveda
Calamansi is believed to have been discovered by Spanish explorers during their expeditions to Southeast Asia. The fruit is native to the Philippines and has been cultivated and used in Filipino cuisine for centuries.
It's gold
Cesium was discovered by two men named Fustov Kirchoff and Robert Bunsen, in the year 1860.
Well, I do know Gustav and Robert did discovered the Alkaki metal cesium in 1860 but im not sure about the whole Alkaki metal family.........