Molybdenum minerals have already been recognised during record, however the factor was discovered (while in the sense of differentiating it as a completely new entity in the mineral salts of other metals) in 1778 by Carl Wilhelm Scheele. TechnetiumH??ng d?n s? d?ng máy in b?ng rôn, ??n gi?n ,d? s? d?ng ,s? d?ng b?ng m?c c?i ti?n h? th?ng m?c ?? t