Fission, Fusion, and Nuclear Decay AP Physics 2 FRQ – Exam Style Questions etc.
Fission, Fusion, and Nuclear Decay AP Physics 2 FRQ
Unit 15: Modern Physics
Weightage : 15–18%
Exam Style Practice Questions ,Fission, Fusion, and Nuclear Decay AP Physics 2 FRQ
Question
How many neutrons are contained in the isotope \(_{92}^{238}U\)?
(A) 92
(B) 100
(C) 146
(D) 330
▶️Answer/Explanation
Ans:(C)
238 nucleons − 92 protons = 146 neutrons
Question
In the reaction below, what is the mass number for particle X?
\(^{27}_{13}Al+^{4}_{2}He\rightarrow ^{30}_{15}P+X\)
(A) 1
(B) 2
(C) 0
(D) − 1
▶️Answer/Explanation
Ans:(A)
The total mass number (upper number) on each side of the reaction must be equal.