Question

Define electron gain enthalpy. What are its units? Discuss the factors which influence the electron gain enthalpy.​

Answer 1

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The electron gain enthalpy of an element is a measure of the firmness or strength with which an extra electron is bound to it. It is measured in electron volts per atom or kJ per mole. It can be an endothermic or exothermic reaction when you add an electron to the atom.

Answer 2

Answer:

when an gaseous isolated atom gains an electron and form anion the some energy is released this energy is called electron gain enthalpy ...

its units are KJ /mole and ev/ atom

factors ....

1: directly proportional to nuclear charge ...

2: inversely proportional to size ..

3 : directly proportional to stability