JEE Main · ChemistryMedium
Select the correct statement regarding the periodic properties of elements.
- A.The electronegativity of noble gases is zero.
- B.The ionization energy of is higher than .
- C.The atomic radius of is larger than .
- D.The electron gain enthalpy of noble gases is highly negative.
Show correct answer & step-by-step solution
Correct answer: B — The ionization energy of is higher than .
Solution
- Nitrogen has the configuration , which is a stable half-filled configuration.
- Oxygen has the configuration , where electron-electron repulsion makes removal easier.
- Therefore, the first ionization energy of is greater than that of .
- Hence the answer is (B).
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