Lanthanum Element Cube Personal Museum Thorium is silvery and tarnishes

Thorium is silvery and tarnishes black when it is exposed to air

" -Abraham Lincoln

from Greek

This sample is safe

This decreased the number of neutron ejections during synthesis

Lanthanum Element Cube Personal Museum Thorium is silvery and tarnishesLanthanum's atomic number is 57 and its symbol is La. Lanthanum is a soft silvery white rare earth metal that tarnishes in the atmosphere. It gets its name from an ancient Greek word meaning to lie hidden because it often occurs among other rare earth elements. Despite its early evasion from discovery, lanthanum is the 28th most abundant element in the earth's crust. It is mostly found in a variety of minerals such as monazite and bastnsite. Perhaps