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Define electronegativity ....

Define electronegativity .

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Electronegativity is the relative tendency of an element present in a covalently bonded mol ecule, to attract the shared pair of electrons towards itself.
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FULL MARKS-PERIODIC CLASSIFICATION OF ELEMENTS -Textual Evaluation Solved( II brief question)
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  2. Magnesium loses electrons successively to form Mg^(+),Mg^(2+)andMg^(3+...

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  3. Define electronegativity .

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  4. How would you explain the fact that the second ionisation potential is...

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  5. Energy of an electron in the ground state of the hydrogen atom is-2.18...

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  6. The electronic configuration of atom is one of the important factor wh...

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  7. In what period and group will an element with Z-118 will be present?

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  8. Justify that the fifth period of the periodic table should have 18 el...

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  9. Elements a,b,c and d have the following electronic configurations: ...

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  10. Give the general electronic configuration of lanthanides and actides?

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  11. Why halogens act as oxidising agents?

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  12. Mention any two anomalous properties of second period elements.

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  13. Explain the pauling method for the determination os ionic radius.

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  14. Explain the periodic trend of ionisation potential.

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  15. Explain the diagonal relationship

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  16. Why the first ionisation enthalphy of sodium is lower than that of mag...

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  17. Calculate the ionic radii of K^(+) and Cl^(-) ions in KCl crystal. T...

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  18. Explain the following, give appropriate reasons. (i) Ionization po...

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  19. What is screening effect ?

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  20. Briefly give the basis for pauling's scale of electronegativity.

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