Home
Class 11
CHEMISTRY
Consider the following species: N^(3-)...

Consider the following species:
`N^(3-)`,`O^(2-)`,`F^(ө)`,`Na^(o+)`,`Mg^(2+)` and `Al^(3+)`
a. What is common in them?
b. Arrange them in the order of increasing ionic radii.

Text Solution

Verified by Experts

a. Each one of these ion contains `10` elections and hence all are isoelectronic ions.
b. The ionic radii of isoelectronic ions decrease with the increase in the magnitude of the nuclear charge. For example, consider the isoelectronic ions: `N^(3-),O^(2-),F^(ө),Na^(o+),Mg^(2+)` and `Al^(3+)` . All these ions have `10` electrons but their nuclear charges increase in the order: `N^(3-)(+7),O^(2-)(+8),F^(ө)(+9),Na^(o+)(+11),Mg^(2+)(+12)` and `Al^(3+)(+13)`. Therefore, their ionic radii decrease in the order : `N^(3-)gtO^(2-)gtF^(ө)gtNa^(o+)gtMg^(2+)gtAl^(3+)`.
Promotional Banner

Topper's Solved these Questions

  • APPENDIX - INORGANIC VOLUME 1

    CENGAGE CHEMISTRY|Exercise Exercise very short|70 Videos

  • APPENDIX - INORGANIC VOLUME 1

    CENGAGE CHEMISTRY|Exercise Exercise Short|146 Videos

  • ALKYNES

    CENGAGE CHEMISTRY|Exercise Exercises (Archives - Analytical and Desriptive Type)|4 Videos

  • ATOMIC STRUCTURE

    CENGAGE CHEMISTRY|Exercise Concept Applicationexercise(4.3)|19 Videos

Similar Questions

Explore conceptually related problems

Consider the following species: P^(3-), S^(2-), CI^(-), K^(+), Ca^(2+) and Sc^(3+) (i) What is common in them? (ii) Arrange them in the order of decreasing ionis radii.

Arrange the following in order of increasing atomic radii Na, Si, Al, Ar :

Increasing order of ionic size : N^(3+),Na^(-),F^(-),O^(2-),Mg^(2+)

For Na^(+),Mg^(2+),F^(-) and O^(2-) , the correct order of increasing ionic radii is :

The correct order of the ionic radii of O^(-2), N^(3-) , F^(-), Mg^(2+) , Na^(+) and Al^(3+) is .