Nuclei - Result Question 14
14. The mass number of a nucleus is equal to the number of
(a) protons it contains
[1995]
(b) nucleons it contains
(c) neutrons it contains
(d) electron it contains
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Answer:
Correct Answer: 14. (b)
Solution:
- (b)
$ \text{ (c) } \frac{R_S}{R _{H e}}=(\frac{A_S}{A _{H e}})^{1 / 3}=(\frac{32}{4})^{1 / 3}=2 $