Best Answer: Along with hundreds of other common foods and household items, they contain the aquatic plants known as seaweed. These are cheese and chocolate milk, peanut butter and pudding, frozen desserts and fruit drinks. Product Containing Algae !
Erbium is never found in nature as the free element. Erbium is found in the ores monazite sand [(Ce, La, etc.)PO 4 ] and bastnÂ°site [(Ce, La, etc.)(CO 3)F], ores containing small amounts of all the rare earth metals. It is difficult to separate from other rare earth elements.
Francium is a radioactive chemical element which is classified among the alkaline earth metals on the periodic table. It is extremely unstable, with a very short half life â approximately 20 minutes â and, as a result, it has few applications outside the realm of scientific research. The bulk of the world's francium is synthesized in labs; it only appears in nature in very small trace amounts, and it is an extremely rare element.