試卷名稱:108年 - 108 臺灣綜合大學系統_學士班轉學生聯合招生試題:普通化學B#122175
年份:108年
科目:轉學考-普通化學
22. The nuclide
Th is radioactive. When one of these atoms decays, a series of α- and β-particle emissions occurs, taking the atom through many transformations to end up as an atom of
Pb. How many α particles are emitted in converting
Th into
Pb?
(A) 8
(B) 10
(C) 4
(D) 6
(E) 2