When an Alpha Particle (⁴He) with a Kinetic Energy of 6.54

Multiple Choice

When an alpha particle (⁴He) with a kinetic energy of 6.54 MeV strikes a ²⁷Al nucleus, a ³⁰P nucleus is created and a neutron is ejected. Assume that the ³⁰P nucleus has no final kinetic energy. Given the following masses for the various particles, what is the kinetic energy of the ejected neutron?

A) 3.71 MeV
B) 2.83 MeV
C) 6.54 MeV
D) 9.37 MeV
E) 0.45 MeV