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Define ionisation enthalpy and electron ...

Define ionisation enthalpy and electron affinity.

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The electron affinity of an element is defined as the energy liberated when an electron is added to its neutral gaseous atom .
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VGS PUBLICATION-BRILLIANT-CLASSIFICATION OF ELEMENTS -THE PERIODIC TABLE -CREATIVE QUESTIONS FOR NEW MODEL EXAMINATION (SECTION -II) (CONCEPUAL UNDERSTANDING )
  1. Define Ionization energy .

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  2. How does the ionization energy vary in a group and a period ?

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  3. Define ionisation enthalpy and electron affinity.

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  4. How does the electron gain enthalpy values vary in a group ...

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  5. What is electronegativity?

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  6. What is Mulliken's proposal about electronegativity ?

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  7. How does it very in a group and in a period ?

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  8. How do metallic and non-metallic charcters vary in a group and ...

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  9. How many elements are present in the 5 ^(th) period of the lon...

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  10. What do you mean by screening effect ?

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  11. What is meant by first ionization energy ?

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  12. What is meant by second ionization energy ?

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  13. What do you mean by element family ?

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  14. Give the outer orbits gerneral electronic configuration of the ...

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  15. Chlorine bromine , iodine are Dobereiner's triads .How do you ju...

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  16. Why are lanthanides and actinides placed separately at the bot...

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  17. Second ionization energy of an element is higher than its firs...

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  18. Why do inert gases have zero valency value ?

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  19. Formation of cation is endothermic where formation of anion is ex...

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  20. There is an element It is high stable but it does not con...

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