Samarium is a rare metal that is silvery in color and ignites at a temperature of 150 C. It belongs to the group of the lanthanoids and was first discovered by the French chemist Paul de Boisbaudran. However, the French chemist Marignac was the first to observe traces of samarium in 1853.
This element is a soft metal with moderate paramagnetic properties. It is stable in air and solid at room temperature. Its Van Der Waals radius and ionic radius are unknown. Stable in dry air, oxide coating forms at higher humidity levels. When it oxidizes, it forms powder...Read More