Schrödinger equation: P(r)>1 ??? I have the solution of the Schrödinger equation for the ground state of the hydrogen electron. The solution ist: u100(r)=sqrt(1/(pi*a^3))*exp(-r/a) If I want to calculate some probabilty values I do this with: P(r)=4*pi*r^2*|u100|^2 If I set r=10^-13 I get a value that is greater than 1, I get P(10^-13)=10^34. This cannot be. Whats wrong with my probability formula?