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प्रश्न
The CORRECT increasing order of ionization enthalpy is ____________.
विकल्प
Cl < O < F < He
O < Cl < He < F
He < Cl < F < O
He < Cl < O < F
MCQ
रिक्त स्थान भरें
उत्तर
The CORRECT increasing order of ionization enthalpy is Cl < O < F < He.
Explanation:
The effective nuclear charge grows with time and diminishes as the group gets smaller. As a result, ionization enthalpy rises over time and falls as one moves down the group.
| Element | Cl | O | F | He |
| Ionization enthalpy (kJ/mol) |
1256 | 1314 | 1680 | 2372 |
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Trends in Atomic Properties of the First Transition Series
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