Autor: Jorge Luis Nepomuceno de Lima

210Po is an intermediary member of the natural mass number (4n+2) 238U decay series that finishes at a stable 206Pb, according to the sequence: 238U (4.49 Ga, a) (R) 234Th(24.1 d, b-) (R) 234Pa (1.18 …

Materials science includes those parts of chemistry and physics that deal with the properties of materials. It encompasses four classes of materials, the study of each of which may be considered a se …