promethium nghĩa là gì"promethium" câu Câu ví dụ Anyone my 'promethium Orb' stolen... and I back. Promethium Style was designed with the strong basic dark background. Promethium Style was designed with the strong basic dark background.Promethium được thiết kế với nền tối cơ bản mạnh mẽ. The only one you will not find is promethium, which is radioactive. The only one you will not find is promethium, which is radioactive.promethium, vì nó là phóng xạ. The new element is called promethium. The new element is called promethium.promethium. New element is called promethium New element is called promethiumpromethium. It's the element called, Promethium. thêm câu ví dụ: 1 2 3 4 5 Nghĩa Danh từ a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uraniumPm , atomic number 61 ,
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