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Account fot the following: Halogens ha...

Account fot the following:
Halogens have very high negative electron gain enthalpy

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Which of the following elements has the most negative electron gain enthalpy?

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CBSE COMPLEMENTARY MATERIAL-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -3 - MARKS QUESTIONS
  1. Explain the following data : Ionisation energy Cl lt H lt O lt N lt...

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  2. IE2 of 3^(rd) period elements is as follows. Why ? Mg lt Si lt Al ...

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  3. Account fot the following: Halogens have very high negative electron...

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  4. Account fot the following: The electron gain enthalpy of Cl (Z = 17 ...

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  5. The ionisation energy of nitrogen is more than that of oxygen because

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  6. What are the d- block elements? Write any four properties of d - block...

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  7. State Modern periodic law.

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  8. Explain the following: Electro-negativity

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  9. Explain the following: Shielding effect

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  10. Among the second period elements the actual ionisation enthalpies are ...

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  11. Among the second period elements the actual ionisation enthalpies are ...

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  12. What do you understand by the isoelectronic species ? Name a species t...

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  13. What do you understand by the isoelectronic species ? Name a species t...

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  14. What do you understand by the isoelectronic species ? Name a species t...

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  15. What do you understand by the isoelectronic species ? Name a species t...

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  16. Show by chemical with water that Na(2) O is a basic oxide and CI(2)O(2...

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  17. Name a species that will be isoelectronic with each of the following a...

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  18. Ca^(2+) ion is isoelectoronic with

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  19. The first ionisation enthalpy of group 13 elements are : Explain ...

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  20. The first (IE1) and the second (IE2) ionisation enthalpies (kJ mol^(...

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