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प्रश्न
IE1 and IE2 of Mg are 179 and 348 kcal mol−1 respectively. The energy required for the reaction \[\ce{Mg -> Mg^2+ + 2e^-}\] is
पर्याय
+ 169 kcal mol−1
− 169 kcal mol−1
+ 527 kcal mol−1
− 527 kcal mol−1
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उत्तर
+ 527 kcal mol−1
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संबंधित प्रश्न
Which of the following elements will have the highest electronegativity?
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
Which one of the following is the least electronegative element?
The First ionisation potential of Na, Mg and Si are 496, 737 and 786 kJ mol-1 respectively. The ionisation potential of Al will be closer to
Which one of the following is true about metallic character when we move from left to right in a period and top to bottom in a group?
What is the effective nuclear charge?
Define electronegativity.
Explain the following, give an appropriate reason.
Ionisation potential of N is greater than that of O
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?
