Structure of Atom - Result Question 23
####25. Which one is the wrong statement?
[2017]
(a) The uncertainty principle is
$\Delta E \times \Delta t \geq h / 4 \pi$
(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 $2 s$ orbital is less than the energy of $2 p$ orbital in case of Hydrogen like atoms
(d) de-Broglie’s wavelength is given by $\lambda=\frac{h}{m v}$, where $m=$ mass of the particle, $v=$ group velocity of the particle
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Solution:
- (c) For hydrogen like atoms energy of $2 s$-orbital and $2 p$-orbital is equal.
