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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
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.
Arrange the elements of second period in increasing order of their electron affinity. Name the elements which do not follow the trend in this period.
Electron affinity values generally _______ across the periods left to right and ______ down the group top to bottom.
An element in period 3, whose electron affinity is zero:
Fill in the blank
The nature of oxide Al2O3 is ____
State whether the following statement is true or false
Al2O3 is an amphoteric oxide.
Arrange the following in increasing order of property indicated
F, Cl, Br, I (electron affinity)
The following questions refer to the Periodic Table.
Which of the elements has the greatest electron affinity among the halogens?
Arrange the following as per instruction given in the bracket.
Cl, F, Br, I (increasing electron affinity)
