Chemistry · PYQ NEET UG 2017
हिन्दी Which one is the WRONG statement?
- de-Broglie's wavelength is given by \( \lambda = \frac{h}{mv} \) where \( m = \text{mass of the particle}, v = \text{group velocity of the particle} \).
- The uncertainty principle is \( \Delta\text{X} \times \Delta\text{p} \ge \frac{h}{4\pi} \).
- 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.
Correct answer · Option 4
The energy of 2s orbital is less than the energy of 2p orbital in case of hydrogen like atoms.
Explanation
For hydrogen and hydrogen-like single-electron species, orbitals in the same shell (like 2s and 2p) are degenerate, meaning they have the exact same energy.
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