1. The problem statement, all variables and given/known data A finite square well 2.0fm wide contains one electron. How deep must the well be if there are only two allowed (bound) energy levels for the electron? 2. Relevant equations (1) E = [ a^2 * hbar^2 ] / 2m (2) u = sqrt [2m(E+Vo)] / hbar 3. The attempt at a solution Use equation (1) to find E, a is the width Then use the E to find u in equation. Vo = 0 because it's in the box On the right track? Or completely off?