electron affinity

[ɪˈlɛktrɑn əˈfɪnɪti]
nounpl: electron affinities
afinidade eletrônica
1. The energy required to remove an electron from a negatively charged ion, or equivalently, the energy released when an atom gains an electron to form a negative ion
Chlorine has a high electron affinity and readily accepts electrons from other atoms.
O cloro tem uma alta afinidade eletrônica e aceita prontamente elétrons de outros átomos.
2. A measure of an atom's ability to attract electrons in a chemical bond
The electron affinity increases across a period in the periodic table.
A afinidade eletrônica aumenta ao longo de um período da tabela periódica.
This is a technical term primarily used in chemistry, physics, and materials science education. It is standardized across English and Portuguese-speaking scientific communities with the same fundamental meaning, making it a true cognate in scientific discourse.
Synonyms / Sinônimos
electron attachment energyelectron capture energy
Antonyms / Antônimos
ionization energy

Regional Variations

General Brazilian
afinidade eletrônica
Standard term used in chemistry education and scientific literature
Portugal
afinidade electrónica
Uses traditional spelling with 'c' instead of 'n'
USA
electron affinity
Standard scientific terminology in English-speaking countries

Related Words

electronegativityionization potentialperiodic tablechemical bondinganion formation
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