حفنیوم, first discovered in 1923, is a lustrous, silvery-gray transition metal rarely found free in nature. It was the next-to-last element with stable nuclei to be added to the periodic table. How did it get its name? Hafnium comes from the Latin word for Copenhagen, which is hafnia. Hafnium Applications Today hafnium is used in… مزید پڑھیں »
