quantum numbern=2 is The ground state translational energy of a particle in one-dimensional box of 300pm length is about 4 eV. Suppose that the same particle is moving in a three-dimensional cubic box of 100 pm on the side. The ground state energy of the particle in the three-dimensional box is 22. (eV). Aukiabor ofadaa lanath 1 tano 10lbatono Asnhino bo sinalbsadialh inabar thaas: tha wobo.