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
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller esther34. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $4.88. You're not tied to anything after your purchase.