Holmium

Rare Earths Members Neodymium (Nd) is the element after which Neodymium magnets are named. Praseodymium (Pr) is so close to Neodymium (Nd) that it is used in Neodymium magnets. Pr is right next to Nd on the periodic table and it's properties are very similar to those of Nd. So similar that about 25-35% of [...]