Question

The number of neutrons in \(^{238}U\) is

• A. 146
• B. 92
• C. 330
• D. 238

Hint:

To calculate the number of neutrons in an isotope, subtract the atomic number from the mass number.

Answer 1

The Correct Option is A

The number of neutrons in an isotope can be found using the formula: \[ \text{Neutrons} = \text{Mass number} - \text{Atomic number} \] For \(^{238}U\), the atomic number is 92, so: \[ \text{Neutrons} = 238 - 92 = 146 \] Thus, the correct answer is 146.