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प्रश्न
Why is the electron affinity of fluorine less than chlorine?
Explain why:
Fluorine has lower electron affinity than chlorine.
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उत्तर १
Fluorine has lower electron affinity than chlorine because of the small size of fluorine, which results in stronger repulsion between the electron and the electrons already present in the atom of fluorine. Hence, the energy released in accepting an electron is lesser in fluorine than that of chlorine.
उत्तर २
- Fluorine has a very small atomic size, causing high electron density around its nucleus.
- This high electron density leads to strong repulsion for the incoming electron.
- As a result, fluorine does not accept the electron as easily as chlorine.
- Therefore, less energy is released when fluorine gains an electron, meaning lower electron affinity.
- Chlorine, with a larger size, can accommodate the electron more easily and thus has a higher electron affinity.
Notes
Students can refer to the provided solutions based on their preferred marks.
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संबंधित प्रश्न
Give one word or phrase for the following:
The amount of energy released when an atom in the gaseous state accepts an electron to form an anion.
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Which has higher E.A. fluorine or Neon?
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The changes in the properties of elements on moving from left to right across a period of the Periodic Table. For the property, choose the correct answer.
The electron affinity of elements in groups 1 to 7:
On descending a group, ______ in ionisation potential as well as electron affinity ______ oxidising capacity.
Neon shows zero electron affinity due to ______.
The electron affinity of an element X is greater than that of element Y.
State whether X is likely to be placed to the left or to the right of Y in the periodic table.
In Period 3 of the Periodic Table, element B is placed to the left of element A. On the basis of this information, choose the correct word from the option to complete the following statement:
The element A would probably have ______ electron affinity than B.
State electron affinity unit.
