Which quantum number cannot be obtained from the solution of the Schrodinger wave equation?

Which of the following rules states that it is impossible to determine simultaneously the exact position and exact momentum of an electron?

Provide the equation for a system where the energy of an atom or molecule does not change with time.

The uncertainties in the velocities of two particles,$A$ and $B$ are $0.05 \ ms^{-1}$ and $0.02 \ ms^{-1}$ respectively. The mass of $B$ is five times that of the mass of $A$. What is the ratio of uncertainties $\frac{\Delta x_A}{\Delta x_B}$ in their positions?

Quantum numbers of an atom can be defined on the basis of

If the uncertainty in momentum and uncertainty in the position of a particle are equal,then the uncertainty in its velocity would be given by