Q908
How many neutrons are there in 92U238 atom ?
A.
92
B.
238
C.
146
AnswerD.
330
Answer: Option C
Solution
Answer: Option C
Solution:
The atomic number of uranium is 92, and the mass number of the isotope is given as 238. Therefore, it has 92 protons, 92 electrons, and 238 — 92 = 146 neutrons.