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Which of the following represents the mo...

Which of the following represents the most eleciropositive element?

A

[He]2`S^1`

B

[He]2`S^2`

C

[Xe]6`S^1`

D

[Xe]6`S^2`

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MAXIMUM PUBLICATION-CLASSIFICATION OF ELEMENTS & PERIODICITY IN PROPERTIES-EXAMPLE
  1. The cause of periodicity of properties is

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  2. Halogen with highest ionization enthalpy is ͟ ͟ ͟͟͟

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  3. Which of the following represents the most eleciropositive element?

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  4. Second electron gain enthalpy Is ͟ ͟ ͟͟͟

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  5. Correct order of polarising power is Cs^+ , K^+ , Mg^(2+) ,Al^(3+)

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  6. The IUPAC name ofthe element with atomic number is 109 is ͟ ͟ ͟...

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  7. The size of iso electronic species F^-, Ne and Na^+ is affected by

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  8. In transition elements the incoming electron occupies (n-1)d sublevel ...

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  9. The arguments made by two students are as given: Student 1 : 'Hydrogen...

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  10. Match the following:

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  11. a) Which one has greater size, Na or K? b) Justify your answer.

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  12. The general cheracteristics of a particular block of elements is as gi...

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  13. The variation in electron gain enthalpies of elements is less systemat...

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  14. Some elementS are given. Li, Cs, Be, C, N, O F, l, Ne, Xe. a) Arrange...

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  15. a) What is meant by atomic radius? b) Explain covalent radius. c) Wr...

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  16. Consider the statement: 'The element with 1s^2 configuration belongs t...

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  17. The properties of elements are a periodic function of their atomic wei...

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  18. a) Define ionisation enthalpy. b) IE1< IE2 < IE3 What is meant by th...

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  19. Say whether the following are true or false: a) On moving across a pe...

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  20. a) On moving down a group what happens to electron gain enthalpy? b) ...

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