²³⁵U Is Readily Made Fissionable by a Thermal Neutron but ²³⁸U

question 2

Multiple Choice

²³⁵U is readily made fissionable by a thermal neutron but ²³⁸U is not because:

• A) the neutron has a smaller binding energy in ²³⁶U
• B) the neutron has a smaller excitation energy in ²³⁶U
• C) the potential barrier for the fragments is less in ²³⁹U
• D) the neutron binding energy is greater than the barrier height for ²³⁶U and less than the barrier height for ²³⁹U
• E) the neutron binding energy is less than the barrier height for ²³⁶U and greater than the barrier height for ²³⁹U

---

Definitions:

Program Terminate

Program terminate refers to the conclusion of a program's execution, where the program ceases to run and returns control to the operating system or calling process.

Catch Block

A segment of code designed to handle an exception that occurs during the execution of a try block.

Generate Exception

The act of intentionally throwing an exception in a program due to a detected error or abnormal condition.

RuntimeException

A type of unchecked exception in Java that represents problems that can occur during the runtime of a program.