List of top Chemistry Questions on Quantum Chemistry

In an atom, electron is moving with a speed of $x~ms^{-1}.$ If its speed is measured within an accuracy of 0.001%, what is its uncertainty in position (in m)? $(m_{e}=9\times10^{-31}kg, h=6.6\times10^{-34}Js)$

An electron is confined to move in a one-dimensional box of length 1˚ A. Its energy in the first excited state is approximately

Calculate the wavelength (in nanometer) associated with a proton moving at \(1.0 \times 10^3 \, \text{m/s}\)
Choose the correct answer from the options given below: