Lanthanides (also known as Lanthanoids) make up the first row on the bottom section of the periodic table. Most of these metals have applications and properties related to magnetism.
“Samarium is element 62, a magnetic lanthanide of the periodic table. It is not named after the...Samarium
“Terbium is an element with the symbol Tb and the atomic number 65. It is a hard metal that is...Terbium