The tendency of an atom or element to attract electrons.
Compound of electro- and affinity (from Latin 'affinitas,' relationship or connection). A chemistry term that emerged in the 19th century as scientists developed modern atomic theory.
Electroaffinity is why some atoms are electron hogs—fluorine is so greedy for electrons it practically snatches them away from other atoms, making it one of the most reactive elements on the periodic table.
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