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प्रश्न
Which one of the following arrangements represent the correct order of least negative to most negative electron gain enthalpy
विकल्प
Al < O < C < Ca < F
Al < Ca < O < C < F
C < F < O < Al < Ca
Ca < Al < C < O < F
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उत्तर
Ca < Al < C < O < F
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संबंधित प्रश्न
Various successive ionisation enthalpies (in kJ mol-1) of an element are given below.
| IE1 | IE2 | IE3 | IE4 | IE5 |
| 577.5 | 1,810 | 2,750 | 11,580 | 14,820 |
The element is
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Define electronegativity.
How would you explain the fact that the second ionisation potential is always higher than the first ionisation potential?
Explain the following, give an appropriate reason.
The electron affinity values of Be and Mg are almost zero and those of N (0.02 eV) and P (0.80 eV) are very low.
What is the screening effect?
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State the trends in the variation of electronegativity in groups and periods.
