Question

If the position of the electron is measured within an accuracy of + 0.002 nm, calculate the uncertainty in the momentum of the electron. Suppose the momentum of the electron is h/4πm × 0.05 nm, is there any problem in defining this value.

Which of the following is responsible to rule out the existence of definite paths or trajectories of electrons?

Assertion: Both position and momentum of an electron cannot be determined simultaneously with maximum accuracy. Reason: The path of an electron in an atom is clearly defined.

Assertion: Electronic configuration of helium is 1S². Reason: Hund's rule demands that the configuration should display maximum stability.