Praseodymium absorbs yellow light very well. Welders use it in their goggles so as to block the bright yellow flame of a blow...
Atomic # = 59 Atomic weight = 140.908
Praseodymium absorbs yellow light very well. Welders use it in their goggles so as to block the bright yellow flame of a blow torch. This allows the welders to more easily see what they are welding.