shielding effect
[/ˈʃiːldɪŋ ɪˈfɛkt/]
nounpl: shielding effects
efeito de blindagem
1. In chemistry and physics, the reduction of the electric field experienced by an electron in a multi-electron atom due to the presence of other electrons between it and the nucleus
The shielding effect explains why valence electrons are less tightly bound to the nucleus than core electrons.
O efeito de blindagem explica por que os elétrons de valência estão menos fortemente ligados ao núcleo do que os elétrons do núcleo.
2. The screening of nuclear charge by inner electrons, reducing the effective nuclear charge experienced by outer electrons
Due to the shielding effect, chlorine has a lower effective nuclear charge on its outermost electrons compared to fluorine.
Devido ao efeito de blindagem, o cloro tem uma carga nuclear efetiva menor nos seus elétrons mais externos em comparação com o flúor.
This is a technical term primarily used in chemistry and physics education and research. It is standardized across both Brazilian Portuguese and European Portuguese scientific communities, though 'screening effect' is sometimes preferred in more formal European contexts. The term is essential to understanding atomic structure and periodic table trends.
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