88. 2-deoxy-2-[¹⁸F]fluoroglucose ( [¹⁸F]FDG ) decays by _ and [18F] will yield stable _.
(A) alpha emission, ¹⁸O
(B) beta emission, ¹⁹F
(C) positron emission, ¹⁸O
(D) photon emission, ¹⁹F
(E) neutron capture,¹⁹O

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統計： A(4), B(5), C(60), D(4), E(5) #2356374

面試倒楣鬼-22幸運上後西

B1 · 2020/07/08

#4124654

alpha emission :質量-4,質子-2, (A)錯

beta emission =中子變成質子同時放出電子
會變成不同的元素->(B)錯

positron emission 跟上相反,質子變成中子並放出正子

=>應該變成¹⁸O (C)正確

photon emission 不牽涉質量數變化(D)錯

neutron capture :質量+1 原子序不變(E)錯

88. 2-deoxy-2-[18F]fluoroglucose ( [18F]FDG ) decays by _______ and [18F] will yield stable _______. (A) alpha emission, 18O (B) beta emission, 19F (C) positron emission, 18O (D) photon emission, 19F (E) neutron capture, 19O