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Samenvatting NOVA Scheikunde 4 VWO Hoofdstuk 1 Chemisch rekenen

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Samenvatting NOVA Scheikunde Hoofdstuk 1 4 VWO Chemisch rekenen

Level
VWO / Gymnasium
Course
Scheikunde








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Written for

Institution
Secondary school
Level
VWO / Gymnasium
Course
Scheikunde
School year
4
All documents for this subject (2399)

Document information

Uploaded on
July 8, 2019
Number of pages
4
Written in
2018/2019
Type
Summary

Subjects

  • scheikunde
  • nova
  • 4 vwo
  • chemisch rekenen
  • hoofdstuk 1
  • samenvatting

Content preview

1.1 Atoombouw en periodiek systeem

Geschiedenis van modelvorming




Thomson: ontdekte elektronen

Rutherford: ontdekte opbouw uit een positieve kern en daaromheen een negatief geladen
elektronen wolk

Bohr: voegde elektronenschillen toe aan het model

Chadwick maakte onderscheid tussen protonen en neutronen in de kern



Atoom bestaat uit

• Atoomkern met protonen (positief) en neutronen (geen lading)

• Elektronenwolk met elektronen (negatief)

• K-schil: max. 2 elektronen

• L-schil: max. 8 elektronen

• M-schil: max. 18 elektronen



Massa (u) Lading (e) Plaats
Proton 1,0 +1 (positief) In de kern
Neutron 1,0 Geen (neutraal) In de kern
Elektron 0,00055 -1 (negatief) Rond de kern
(Dus heel klein)


Atomaire massa eenheid = 1u = 1/12e deel van een 12
6𝐶 : atoom




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this actually mainly explained a list of terms, not necessarily a summary

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