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Main energy levels

Electrons are arranged in main energy levels (K, L, M, N ...) around the nucleus; level n holds at most 2n2 electrons (this rule applies to the first four levels only); outer electrons are the valence electrons.

The idea, in English

Electrons are arranged in main energy levels (K, L, M, N ...) around the nucleus; level n holds at most 2n2 electrons (this rule applies to the first four levels only); outer electrons are the valence electrons.

Explain in Egyptian Arabic

الـ electrons بتترتب حوالين الـ nucleus في main energy levels (K, L, M, N ...). المستوى رقم n أقصى عدد electrons يشيله هو 2n2 (والقاعدة دي بتنطبق على أول أربع مستويات تحديدًا). والـ electrons اللي في المستوى الخارجي هي الـ valence electrons (ده في عناصر المجموعات الرئيسية).

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