electron affinity

American  

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.

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electron affinity British  

noun

1.  A.  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

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Example Sentences

The electron affinity of the acceptor that makes up the depleted heterojunction has also been systematically varied.

From Nature