Question

A neutron strikes an atom of uranium-235 to start a fission reaction. A student expresses this situation as 01n+235 92U . Which statement describes why the expression is incorrect?(1 point) Responses A neutron should be expressed as 11H , not 01n . A neutron should be expressed as 1 to the 1th power cap h, not 1 to the 0 power n. The mass number for uranium-235 is in the wrong location. The mass number for uranium-235 is in the wrong location. A neutron should be expressed as 10n , not 01n . A neutron should be expressed as 0 to the 1th power n, not 1 to the 0 power n. The atomic number for uranium-235 is in the wrong location.

Answer 1

The correct response to describe why the expression "01n + 235 92U" is incorrect is:

**A neutron should be expressed as 10n, not 01n.**

In nuclear notation, the neutron is represented as \( ^1_0n \) or \( ^0_1n \), but it is more commonly represented simply as \( n \) or \( ^1n \) without any atomic number for clarity since it has no charge and a mass number of 1. The notation "01n" is not standard.

Additionally, while the mass number and atomic number for uranium-235 should be in the correct format, the specific expression for the neutron is the primary issue in the given expression.