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प्रश्न
Which of the following orders of ionic radii is correct?
पर्याय
H− > H+ > H
Na+ > F− > O2−
F > O2− > Na+
None of these
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उत्तर
None of these
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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
The element with positive electron gain enthalpy is
How does electron affinity change when we move from left to right in a period in the periodic table?
What is the effective nuclear charge?
Is the definition given below for ionisation enthalpy is correct?
"Ionisation enthalpy is defined as the energy required to remove the most loosely bound electron from the valence shell of an atom"
Magnesium loses electrons successively to form Mg+, Mg2+ and Mg3+ ions. Which step will have the highest ionisation energy and why?
How would you explain the fact that the second ionisation potential is always higher than the first ionisation potential?
Energy of an electron in the ground state of the hydrogen atom is −2.18 × 10−18 J. Calculate the ionisation enthalpy of atomic hydrogen in terms of kJ mol−1.
In what period and group will an element with Z = 118 will be present?
State the trends in the variation of electronegativity in groups and periods.
