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Justify the position of zero group in Me...

Justify the position of zero group in Mendeleev's periodic table.

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CHHAYA PUBLICATION-CLASSIFICATION OF ELEMENTS & PERIODICITY IN PROPERTIES-SHORT-TYPE QUESTIONS
  1. Arrange the element with atomic number 12,17,19,23 and 25 into s,p and...

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  2. "The properties of an element depend on the electronic configuration o...

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  3. Justify the position of zero group in Mendeleev's periodic table.

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  4. (a) "Atomic number of two elements ar 9 and 17 respectively. Both elem...

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  5. How can the groups, valencies and the positions of transition elements...

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  6. Indicate the position of the element with electronic configuration (n-...

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  7. Discuss characteristics of d-block elements.

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  8. O^(2-) and F^(-) are isoelectronic. Justify whether the atomic radii o...

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  9. Write the electronic configuration of the following- (a) inert gas (b)...

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  10. Write the name and atomic number of each of the following (a) third al...

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  11. The decrease in atomic size of the transition elements is comparativel...

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  12. What is screening effect? What is the order of screening effect of the...

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  13. How is atomic or ionic radius of an element related to the quantity (z...

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  14. How do the metallic and non-metallic characters vary along the group a...

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  15. Mention the factors on which the ionisation potential depends.

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  16. Which out of magnesium and aluminium has greater ionisation potential ...

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  17. Give the definition of electron affinity and electronegativity. Write ...

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  18. Electron affinity of inert elements are positive-why?

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  19. B(2)O(3) is acidic in nature but BeO is amphoteric-why?

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  20. What do you mean by electronegativity of an element? Discuss its varia...

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