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SamenvattING VAK Chemie 1.4

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Uploaded on
June 15, 2023
Number of pages
50
Written in
2022/2023
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Summary

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VAK-module chemie

,Kalibratielijn

, Atoombouw



experiment van Thompson(1897) ontdekking elektron atoomnummer


Clading 9 :-1,602.10"9 C/massa g, log.104g)m= is
getyl aan het
aantal protonen in het
atoom (aantal

protonen is hetzelfde als aantal elektronen)

notatie of
4 afr

atoommas sa

massa protonentneutronen (massa dektronen verwaarlozen)
van Rutherford
experiment (igiz) ontdekking proton amulatomaire massa unit) I Dalton =

1,661.02* hg
Clading 1,602.109 c/ 1673.102
9 =
massa m =



kg) massa proton:1,007Dalton massa neutron:1,000 Dalton


eigenlijk gewoon
aantal protonen +
neutronen

notatie' of"Ar


isotopen
van Chadwich
experiment (ig32) ontdekking neutron verschillende (stabiele) vormen van een atoom


Clading 9 0c/ massam 1,673.102 4g) aantal protonen elektronen
blijft hetzelfde, aantal
= =


en


neutronen verschilt dus ook verschillende atoommassa




H of Ar

hern van neutronen
protonent omringd metelektronen

, periodieke systeem bindingen +

moleculen



door DimitriMolecuul:bestaat
u itmeerdere/verschillende atomen
medeleeu
watermolecuul:2H+ 10




0:2
bindingen 00
=




n:3
bindingen n R
=




C:
bindingen
edelgassen kunnen
geen bindingen aangaan


octetregel
elke atoom (behalve H) voldoet
aan
octetregel
metalen -
d
verbindingen is
octetregel 1.=-binding
-




halfgeleiders 1 2
binding
=

-




niet-metalen

Molecuulformule molecuul mbu atomen
benaming van
is


metaal
geleidtgoed elektriciteit/warmte, slechter bij hogere temp.byu. R20 /nHs
niet-metaal slechte
geleiding elektriciteit
halfgeleiders geleiden half, steeds beter byhogere temp.

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