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:

  1. (b)

$ \text{ (c) } \frac{R_S}{R _{H e}}=(\frac{A_S}{A _{H e}})^{1 / 3}=(\frac{32}{4})^{1 / 3}=2 $