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In terms of electronic configuration wh...

In terms of electronic configuration what does elements of given period and a group have in common?

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In a period , all elements have equal number of shells.
In a group , all elements have equal number of electrons in the outermost shell.
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SURA PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-ADDITIONAL SHORT ANSWERS
  1. Rn (Z=86) is the last noble gas discovered . Predict what will be the...

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  2. What are inner transition elements ?

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  3. In terms of electronic configuration what does elements of given peri...

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  4. Write the name and atomic number of the following elements (i) Th...

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  5. First ionisation potential of C- atom is greater than that of B atom ,...

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  6. Atomic number of elements X,Y,Z and A are 4,8,7 and 12 respectivity ....

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  7. Which has the stable electronic configuration : Ni^(2+)orFe^(+3). Wh...

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  8. Define covalent radius.

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  9. Define periodicity.

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  10. Out of Na and Mg , which has higher second ionisation energy?

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  11. Noble gases have maximum ionisation energy. Justify.

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  12. Which of the following species will have the largest and smallest siz...

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  13. The size of Cl^(-)=1.81ÅandCl=0.99Å. Explain.

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  14. How does the shielding effect caused by inner electrons affect the ion...

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  15. Larger the size of the atom ,lesser is the ionisation energy . Explain...

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  16. Define lonization enthalpy.

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  17. Noble gases have almost zero electron affinity give reason.

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  18. Which among the halogens would you expect to have the least electroneg...

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  19. Arrange the following elements in the increasing order of non - metall...

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  20. Give reason for the following statement. Halogens act as good oxidisin...

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