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Account for the fact that 4th period ...

Account for the fact that 4th period has eighteen and not eight elements.

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PRADEEP-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -Additional Question (Short Answer Question )
  1. Explain briefly Groups and Periods' Transition and Normal element...

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  2. On the basis of electronic configuration justify that the second ...

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  3. Account for the fact that 4th period has eighteen and not eight ...

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  4. Elements A, B, C and D have atomic numbers 12, 19, 29 and 36 res...

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  5. What do you understand by Representative elements ? Name the groups...

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  6. What are transition elements ? Why are they so called ? Name the d...

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  7. Which elements are called inner transition elements ? Name the diff...

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  8. Describe the main characteristic properties of s, p, d and f-block ele...

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  9. Name the different blocks of elements in the periodic table. Give the ...

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  10. Though copper silver and gold atoms have completely filled sets...

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  11. What do you understand by periodic properties of elements ? Name ...

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  12. How do atomic sizes vary in a group and in a period? Give reason for t...

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  13. What is meant by atomic and ionic radii ? Explain giving reason ...

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  14. The size of an anion is larger than that of its parent atom. Give...

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  15. The size of a cation is smaller that than of its parent atom .Give...

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  16. Mg^(2+) is smaller than O^(2-) in size, throgh both have same electron...

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  17. What are isoelectronic species ? Give example to illustrate your ...

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  18. Arrange the following as stated: Increasing order of ionic size N^(3...

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  19. Define the term ionization enthalpy ? How does it vary along a p...

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  20. What do you understand by the term successive ionization enthalp...

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