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Samenvatting Biology, ISBN: 9781292341637 Moleculaire Biologie $4.88   Add to cart

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Samenvatting Biology, ISBN: 9781292341637 Moleculaire Biologie

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Samenvatting hoofdstuk 2 Biology v Campbell.

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  • September 29, 2022
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  • 2022/2023
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Kennisclips Hoofdstuk 2
Elementen en Chemische verbindingen
Chemische verbinding 2 of meer elementen in een vaste
a

Essentiële elementen
verho ding
andere eigenschappen dan delosse elementen
20 251 vd 92 elementen z n noodzakel k
voor het bestaan van organismen
961 van een organisme bestaat uit O C H N
Trace elements ovterige 41
weinig van nodig

Atomen
Massa getal protonen t neutronen m 1 Dalton Da
linksbovenelement I He
Atoomnummer linksonder element atoomnummers zelfde
zelfde
element t zelfde chemische eigenschappen

Isotopen en
radioactief verval
Isotopen atomen metzelfdeaantal protonen enverschillend aantal neutronen
Radioactieve isotopen onstabiel vervalsnelheid uitgedrukt in halfwaardet d



Elektronen verdeling
Verdeling elektronen in schillen bepaald chemische eigenschappen atoom
Een orbitaal is de ruimte waarin een elektron 901 vd t d is 1 orbitaal bevat

2 elektronen dusiedere schil bestaat uit een bepaald aantal orbitalen

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