question_answer

Which one is the wrong statement?                                                                                                       

A)  The energy of 2s orbital is less than the energy of 2p orbital in case of Hydrogen like atoms

B)  de-Broglie's wavelength is given by \[\lambda =\frac{h}{mv},\] where m = mass of the particle, v = group velocity of the particle

C)  The uncertainty principle is \[\Delta E\times \Delta t\ge \frac{h}{4\pi }\]

D)  Half-filled and fully filled orbitals have greater stability due to greater exchange energy, greater symmetry and more balanced arrangement