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An element has on atomic number = 53. St...

An element has on atomic number = 53. State its position in the Periodic Table.

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The electron configuration of the element is `[Kr]4d^10 5S^2 5p^5`.
Thus it is located in Period 5 and group (VII (A)/Group-17.
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PATHFINDER-PERIODIC CLASSIFICATION OF ELEMENTS AND PERIODIC PROPERTIES-QUESTION BANK
  1. How does metallic character vary in the group and period?

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  2. State the decreasing order of the penetration power of orbitals.

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  3. An element has on atomic number = 53. State its position in the Period...

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  4. The Reason for diagonal relationship is -

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  5. The order of ionic redius of N^(3-), O^(2-), F^- and Na^+ is -

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  6. What are actinones?

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  7. The elements A, B and C have atomic numbers Z -2, Z and Z +1 respecive...

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  8. The elements A, B and C have atomic numbers Z -2, Z and Z +1 respecive...

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  9. Why do transition elements have a greater tendency to form co-ordinate...

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  10. Give four defects of 'Mendeleev's periodic table.

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  11. Consider the following species. N^(3-) , O^(2-) , Na^+ , Mg^(+2) , Al...

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  12. Consider the following species. N^(3-) , O^(2-) , Na^+ , Mg^(+2) , Al...

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  13. First I.P. of Be is greater than B.

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  14. First I.P. of N is greater than O Explain.

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  15. The first I.P. of 'C' is greater than of 'B' where as reverse is true ...

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  16. Arrange the following in order of increasing radii. I^-, I, I^+,

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  17. Arrange the following in order of increasing radii. F, Cl, Br

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  18. Electron gain enthalpy of Cl is more negative than F though electroneg...

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  19. What is the reason of periodicity in the periodic table?

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  20. What is the voriation of lonisation Energy in a group?

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