Which one is the wrong statement? - Vidyadip

MCQ

Which one is the wrong statement?

A
The uncertainty principle is $\Delta E \times \Delta t \geq \frac{h}{4\pi}$
B
Half filled and fully filled orbitals have greater stability due to greater exchange energy, greater symmetry and more balanced arrangement.
✓
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 $\lambda = \frac{h}{mv}$, where $m =$ mass of the particle, $v =$ group velocity of the particle.

✓

Answer

Correct option: C.

The energy of $2s-$ orbital is less than the energy of $2p-$ orbital in case of hydrogen like atoms.

c
In $H-$like atom energy of $2 s=2 \mathrm{p} $ orbital

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