Neodymium (Nd)

                (https://en.wikipedia.org/wiki/Neodymium#/media/File:Neodymium2.jpg)

Properties

Neodymium is the ultimate example of a typical REE. There isn't anything special about Neodymium apart from the general properties of rare earth elements as a group, except that it is readily available and much cheaper than REE alternatives.

Applications

Alloying neodymium with iron and boron is the most popular way to create super strong permanent magnets at the lowest possible cost. These magnets are essential components of electrical generation in wind turbines. They are also necessary in electric motors, like the one you're going to drive around in 10 years to do your part in saving the planet. Neodymium alloyed magnets are used in an huge range of common products. These include MRI medical scanners, audio equipment, and hard drives.

The phosphorescent nature of neodymium is taken advantage of by welders and people who stare at laser beams. Glass doped with neodymium absorb the Sodium D-lines completely, allowing people to gaze easy at really bright things.