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Define classification of element....

Define classification of element.

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The arrangement of element, in such a was that the similar element, fall within same vertical group and the dissimilar element, are separated , is known as classification of elements.
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SUBHASH PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -THREE MARKS more than 3 marks
  1. Define classification of element.

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  2. Explain the features that influence/affect the ionization energy.

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  3. Explain classification of elements into different blocks in the period...

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  4. Explain the law of triads with example.

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  5. Briefly explain the account explain the account of groups and periods ...

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  6. Explain why size of anion is larger than parent atom.

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  7. Explain why size of cation is smaller than of the parent atom.

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  8. Explain the variation of radii of is electronic species or ions.

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  9. Why Fluorine atom has unexpectedly less negative Delta("eg") H than ch...

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  10. Explain periodicity of valence or oxidation state of s and p block ele...

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  11. Arrange the species in each group in order in increasing ionization en...

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  12. What are the factors that affect electron affinity ?

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  13. a. Explain why the second ionisation energy of B is significantly high...

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  14. a. Explain why the second ionisation energy of B is significantly high...

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  15. Why fluorine has lesser electron gain enthalpy than chlorine?

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  16. Give the reasons of the following : Noble gases tend to be less ...

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  17. Give the reasons of the following : First ionization enthalpy of ...

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  18. Account for the following : Mg^(+2) is smaller than O-^(2) ion al...

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  19. Account for the following : write the IUPAC name and the symbol fo...

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  20. Some elements are wrongly placed in the decreasing order of the prope...

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  21. Some elements are wrongly placed in the decreasing order of the prope...

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