What is positive and negative electron gain enthalpy values?
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Electron Gain Enthalpy or Electron Affinity is the amount of energy released when an isolated, neutral, gaseous atom takes up an extra electron to form uninegative gaseous ions. X(g) + e− ----→ X− ; Δ H = Δ eg .
Negative value of electron gain enthalpy denotes that energy is given out and a positive value denotes that energy is absorbed when an electron is gained by an atom.
jhakass:
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