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प्रश्न
Define the term ‘electron affinity’.
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उत्तर
Electron affinity is the energy released when an isolated gaseous atom acquires an electron to form an anion.
\[\ce{X (g) + e- -> \underset{(anion)}{X-(g)}+ E.A.}\]
X is any element taken in its gaseous state.
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संबंधित प्रश्न
Arrange the following as per the instruction given in the brackets:
He, Ar, Ne (Increasing order of the number of electron shells)
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Methane
[H = 1, C = 6, Mg = 12, Cl = 17]
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The reducing power of element increases down in the group while decreases in a period.
Arrange the elements of group 17 and group 1 according to the given conditions.
Increasing electron affinity
Why is the electron affinity of fluorine less than chlorine?
Fill in the blank
The nature of oxide Al2O3 is ____
On descending a group, ______ in ionisation potential as well as electron affinity ______ oxidising capacity.
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.
