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Explain why cations are smaller and anio...

Explain why cations are smaller and anions larger in radii than their parent atoms?

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CHHAYA PUBLICATION-CLASSIFICATION OF ELEMENTS & PERIODICITY IN PROPERTIES-SOLVED NCERT EXERCISE
  1. What do you mean by isoelectronic species? Name species that will be i...

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  2. Consider the given species: N^(3-),O^(2-),F^(-),Na^(+),Mg^(2+) and Al^...

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  3. Explain why cations are smaller and anions larger in radii than their ...

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  4. What is the significance of the terms-'Isolated gaseous atom' and 'gro...

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  5. Enegy of an electron in the ground state of the H. atom is -2.18xx10^(...

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  6. Among the second period elements the actual ionisation enthalpies are ...

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  7. How would you explain the fact that the first ionisation enthalpy of s...

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  8. What are the vairous factors due to which the ionisation enthalpy of t...

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  9. First ionisation enthalpy values (in kJ mol^(-1)) of group-13 elements...

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  10. Which of the given pairs would have a more negative electron-gain enth...

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  11. Electron gain enthalpy of Cl is more negative than F though electroneg...

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  12. What is the basic difference between the terms electron-gain enthalpy ...

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  13. How would you react to the statement that the electronegativity of N o...

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  14. Describe the theory associated with the radius of an atom as it (1) ...

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  15. Would you expect the first ionisation enthalpies for two isotopes of t...

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

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  17. Use the periodic table in answer the given questions. (1) Identify a...

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  18. The order of reacivity of grou-1 elements is Li lt Na lt K lt Rb lt Cs...

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  19. Write the general outer electronic configuration of s-,p-,d- and f-blo...

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  20. Assign the position of the element having outer electronic configurati...

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