1. The problem statement, all variables and given/known data The particle in a box model is often used to make rough estimates of ground state energies. Suppose that you have a neutron confined to a one-dimensional box of length equal say 1 x 10^-14m. What is the ground state energy of the confined neutron? answer in MeV? 2. Relevant equations En = h^2/8mL^2 3. The attempt at a solution I am getting the wrong answer... I am getting: (6.626e-34)^2/((8)(1.675e-27)(1e-14)^2) = 3.28e-13 That is wrong... anyone?