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Which periods are called the short perio...

Which periods are called the short periods and
which are called the long periods? Why?

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PEARSON IIT JEE FOUNDATION-PERIODIC TABLE-VERY SHORT ANSWER TYPE QUESTIONS.
  1. Describe the trend of electron affinity along a period.

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  2. Describe the trend of atomic size along a period and a group in the ...

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  3. Which periods are called the short periods and which are called the ...

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  4. describe the trend of ionisation potential along a period and a gro...

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  5. Why are the chemical properties of the elements belonging to the sam...

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  6. An element, the atomic number with 36 belongs to group and period.

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  7. What do you mean by representative elements? Give an example.

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  8. Which group contains the noble gases and what are the special charac...

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  9. General electronic configuration of chalcogens is .

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  10. Describe the trend of ionisation potential down the group in the per...

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  11. Describe how the metallic and non-metallic characters vary along a p...

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  12. The elements present in and periods can exhibit diagonal relations...

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  13. Ionisation potential value of Cs is equal to the electron affinity v...

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  14. block elements can exhibit variable number of oxidation states.

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  15. What is a covalent radius?

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  16. In the long form of periodic table group contains the maximum numbe...

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  17. Anion size is always than the parent atom.

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  18. How does the electron affinity vary in the first transition series?

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  19. In the f-block elements the last or differentiating electron enters th...

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  20. group elements are the strongest reducing agents.

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