Which one is a wrong statement?

Options

A. the uncertainty principle is `DeltaE xxDeltat ge(h)/(pi)`
B. half-filled and fully filled orbitals have greater stability due to greater exchange energy, greater symmetry and more balanced arrangement
C. the energy of 2s-orbital is less than the energy of 2p-orbital in case of hydrogen-like atoms
D. de Broglie's wavelength is given by `lamda=(h)/(mv)`, where m=mass of the particle, v=group velocity of the particle

Answer

C

Explanation

For hydrogen like atom, energy of the orbital depends on the principal quantum number. Thus for hydrogen like atom, energy of 2s and 2p orbitals are same.