Electron-affinity



noun, Physics, Chemistry.
1.
the quantitative measure, usually given in electron-volts, of the tendency of an atom or molecule to capture an electron and to form a negative ion.
noun
1.
a measure of the ability of an atom or molecule to form a negative ion, expressed as the energy released when an electron is attached A
noun

the amount of energy needed to remove an electron from a negatively charged ion; also, the energy released when a single electron is combined with an isolated atom

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