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Electron affinity is...

Electron affinity is

A

Energy required to take out an electron from an isolated gaseous atom

B

The tendency of an atom to attract an electron towards itself

C

Energy absorbed when an electron is added to an isolated atom in gaseous state

D

Energy released when an electron is added to an isolated atom in the gaseous state

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The correct Answer is:
D
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AAKASH SERIES-PERIODIC PROPERTIES-LEVEL -I (EAMCET) EXERCISE -III
  1. Ionisation potential values of Li, Be and B are respectively in kJ "mo...

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  2. Screening effect is not common for the elements of the period

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  3. Electron affinity is

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  4. The property of an element that is not normals determined directly but...

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  5. Electron affinity is measured in

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  6. Which of the following is an endothermic process?

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  7. In a period from left to right, electron affinity

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  8. Configuration that shows the highest energy released when an electron ...

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  9. Electron affinity of Fluorine is less than that of Chlorine because

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  10. Among chalcogens electron affinity is highest for

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  11. The element with highest electron affinity is

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  12. Incorrect statement is

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  13. Pauling's electronegativity is based on

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  14. Pauling's electronegativity values for elements are useful in predicti...

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  15. Correct relation among XA, XB, and Delta, where XA, and XB are the ele...

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  16. Reference element for Pauling's electronegativity is

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  17. Electronegativity of an element is the average of its ionisation energ...

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  18. The electronegativity values according to Mulliken scale are times t...

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  19. Electronegativity on Mulliken scale is limited to

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  20. If I and E are ionisation energy and electron affinity of an element i...

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