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What is common between given cations and...

What is common between given cations and anions,`O^(2-)F^(-),Na^(+),Mg^(2+),AI^(3+)`?

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The ionic radii of isoelectronic ions decrease with increase in the magnitude of nuclear charge.
The nuclear charges of the given species are as follows :
`N^(3-):+7,F^(-):+9,Mg^(2):+12`
`O^(2-):+8,Na^(+):+11,Al^(3+):+13`
Therefore, the increasing order of their ionic radii will be as follows :
`underset("Ionic radius increases ")overset(Al^(3+)ltMg^(2+)ltNa^(+)ltF^(-)ltO^(2-)ltN^(3-))to`
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ICSE-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-NCERT TEXT-BOOK. EXERCISE (With Hints and Solutions)
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  2. Consider the following species: N^(3-),O^(2-),F^(-),Na^(+),Mg^(2+) a...

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  3. What is common between given cations and anions,O^(2-)F^(-),Na^(+),Mg^...

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  4. Explain why cation are smaller and anions larger in radii than their p...

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  5. What is the significance of the terms — ‘isolated gaseous atom’ and ‘g...

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  6. Energy of an electron in the ground state of the hydrogen atom is -2.1...

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  7. Among the second period elements the actual ionization enthalpies are ...

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  8. Among the second period elements the actual ionization enthalpies are ...

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  9. How would you explain the fact that the first ionsiation enthalpy of s...

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  10. What are the various factors due to which the ionization enthalpy of t...

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  11. The first ionisation enthalpy values (in kJ mol^(-1)) of group 13 ele...

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  12. Which of the following pairs of elements would have a more negative el...

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  13. Which of the following pairs of elements would have a more negative el...

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  14. Would you expect the second electron gain enthalpy of O as positive , ...

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  15. What is the basic difference between the terms electron gain enthalpy ...

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  16. How would yon react to the statement that the electronegativity of N o...

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  17. Describe the theory associated with the radius of an atom as it gain...

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  18. Describe the theory associated with the radius of an atom as it lose...

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  19. Would you expect the first ionization enthalpies for two isotopes of t...

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  20. What are the major differences between metals and non-metals?

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