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CHEMISTRY: TOPIC 3 PERIODICITY

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Pregunta:

What is electron shielding? (4)

Autor: Sammy Universe



Respuesta:

When the inner electrons shield the outer valence electrons from the the full attraction from the nucleus so valence electrons needs less energy to remove than the inner electrons (lower ionization energy) across period: electron shielding is constant bec number of shells stays the same = same number of shielding electrons down group = electron shielding increases bec number of shells increase = number of shielding electrons increase


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