Neodymium Background
Neodymium: Ib qho keeb kwm me me Neodymium tau pom nyob rau xyoo 1885 los ntawm Austrian chemist Carl Auer von Welsbach, txawm hais tias nws qhov kev tshawb pom coj los ntawm qee qhov kev tsis sib haum xeeb - cov hlau tsis tuaj yeem pom nyob rau hauv nws daim ntawv hlau, thiab yuav tsum tau muab cais tawm ntawm Didymium. A...
saib kom meej