When a ssion neutron produced in a reactor core slows down to the lowest possible energy it can obtain, it is called a thermal neutron. When it reaches this energy, its most probable energy is 0.025...

When a ssion neutron produced in a reactor core slows down to the lowest possible energy it can obtain, it is called a thermal neutron. When it reaches this energy, its most probable energy is 0.025 eV. Under these conditions, how does its wavelength compare to the diameter of an ordinary atom?