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Hvad er definitionen på et molekyle?
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Hvad er en kovalent binding?
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Molekyler

Lidt om molekyler, elektronegativitet og hydrofobi.

QuestionAnswer
Hvad er definitionen på et molekyle? Stabile forbindelser opbygget af atomer (ikke-metaller) bundet sammen af kovalente bindinger.
Hvad er en kovalent binding? Valens elektroner (elektronen i yderste skal) går sammen (kompagni) - kovalent binding.
Hvad er en elektronparbinding? Fælles elektronpar (bevæger sig om begge kerner) binder atomerne sammen - elektronparbinding.
Hvad er et ensomt elektronpar? Ikke bindende elektronpar/allerede eksisterende elektronpar hos atomet.
Hvad siger oktetreglen? Alle atomer ønsker 8 elektroner i yderste skal. Det/de centrale atomer opfylder altid oktetreglen. Atomer med originalt syv elektroner i yderste skal, opfylder automatisk oktetreglen når de bindes til et andet atom.
Hvad betyder elektronegativitet? Et tal, der angiver atomets evne til at trække elektroner til sig.
Hvad er elektronegativitetsforskellen, og hvad betyder det, hvis der i en binding ikke er symmetrisk elektronfordeling? Elektronegativitetsforskellen: ΔEN. Angiver hvor polær binding mellem to atomer i et molekyle er. ikke symmetrisk elektronfordeling: der er en plus og minus pol, og det atom med den stærkeste elektronegativitet bliver en lille smule negativ.
Hvor mange C-atomer skal der være i en hydrofob gruppe, for at hæve virkningen af en hydrofil gruppe? Fire eller mere.
Created by: Lakridsnn
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