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.
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