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Mention one similarity in atoms of the e...

Mention one similarity in atoms of the elements belonging to the same group of the periodic table.

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Number of valence electrons in the atoms is the same.
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PATHFINDER-PERIODIC CLASSIFICATION OF ELEMENTS AND PERIODIC PROPERTIES-QUESTION BANK
  1. Why are the most of the atoms or ions of transition elements paramagne...

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  2. With what types of elements a period of the periodic table starts and ...

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  3. Mention one similarity in atoms of the elements belonging to the same ...

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  4. Arrange the different sub-energy levels in the decreasing order of scr...

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  5. Mention a property whhich is not periodic property of elements.

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  6. Arrange Mg^2+ , O^2- , Na^+ and F^- in the descending order of their i...

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  7. Which one of the iso-electronic ions K^+ , Cl^- , S^(2-) and Ca^(2++) ...

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  8. Which important property did Mendeleev use to classify the elements in...

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  9. Fourth period has 18 elements and not 52. Explain.

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  10. Give the general electronic configuration of 's' and 'p'-block element...

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  11. What are 'transition' elements?

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  12. What do you mean by 'inner-transition elements'?

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  13. Give the Electronic configuration and position of the elements in the ...

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  14. Why are the cations smaller than atom?

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  15. To which block does the element with atomic number 50 belong?

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  16. Arrange the increasing order of atomic radii Li, Na, K.

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  17. Which is largest among Ca^(+2), Mg^(+2) , Ba^(+2) and why?

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  18. Which of the elements Na, Mg, Si and P have the geatest difference bet...

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  19. Why Gr-17 elements acts as good oxidising agent?

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  20. Arrange Cl, Cl^- , Cl^+ in the increasing order of size?

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