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Electron Gain Enthalpy

The energy re...

Question

The energy released when an electron is added to the valence shell of a neutral, gaseous, isolated atom is called

A

electronegativity

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B

ionization potential

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C

electron affinity

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D

lattice energy

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Solution

The correct option is C electron affinity
Electron affinity is defined as the amount of energy released when an electron is added to the valence shell of a gaseous, neutral and isolated atom.

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Q. When an electron is added to the neutral isolated atom, energy is given out. It is an exothermic process. In this process, monoanion is formed. Electron affinity of an element is defined as the amount of energy liberated when an electron is added to the neutral isolated atom in its ground state. Greater the amount of energy released, greater is the electron affinity. Electron affinity is expressed in terms of

e V a t o m^{- 1}

K c a l

k J m o l^{- 1}

.

Electron affinity of elements depends on which of the following?

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