In 1803, cerium was the 1st of your lanthanide metals to become found out, in Bastnäs, Sweden by Jöns Jakob Berzelius and Wilhelm Hisinger, and independently by Martin Heinrich Klaproth in Germany. The lanthanide metals were being largely regarded as oddities right until the 1960s when procedures ended up formulated https://imperialgarage75319.wikigop.com/689499/article_under_review