The nuclear radius of a certain nucleus is 7.2 fm and it has a charge of 1.28×10⁻¹⁷ C.

The nuclear radius of a certain nucleus is 7.2 fm and it has a charge of 1.28×10⁻¹⁷ C. The number of neutrons inside the nucleus is

Options

(a) 136
(b) 142
(c) 140
(d) 132

Correct Answer:

136

Explanation:

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