Question

Which one is the wrong statement?

• A. de-Broglie's wavelength is given by $λ=\frac {h}{mv}$, where $m$ = mass of the particle, $v$ = group velocity of the particle
• B. The uncertainty principle is $△E × △t ≥ \frac {h}{4\pi}$
• C. Half-filled and fully filled orbitals have greater stability due to greater exchange energy, greater symmetry and more balanced arrangement
• D. The energy of 2s orbital is less than the energy of 2p orbital in case of Hydrogen like atoms

Answer 1

Answer: (D)

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

Answer 2

The correct option is (D): The energy of 2s orbital is less than the energy of 2p orbital in case of Hydrogen like atoms.