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Summary Graad 9 Natuurwetenskappe (NW) Opsommings - Kwartaal 2 (Via Afrika) R120,00
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Summary Graad 9 Natuurwetenskappe (NW) Opsommings - Kwartaal 2 (Via Afrika)

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Graad 9 Natuurwetenskappe (NW) Opsommings Kwartaal 2: Die opsommings is saamgestel deur die Via Afrika handboek se werk op te som. Opsommings is in Afrikaans met aanvullende en skriftelike notas wat deur die opsteller saam gestel is. Afdeling 2 - Materie en materiale: Onderwerp 1:  Verbindings...

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  • March 8, 2025
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, Die Periodieke Tabel
Die Periodieke Tabel van Elemente
Name van verbindings
• Metale - blink, kan in vorms gestamp word,
• Verbindings se name toon die elemente wat en goeie geleiers van elektrisiteit en hitte.
daarin voorkom. • Nie-metale - dof, bros en gelei nie elektrisiteit
• Sommige is bekend onder algemene name – en hitte nie.
bv. water (H2O) en ammoniak (NH3). • Semi-metale - deel eienskappe met metale en
• Sommige wys hoeveel atome van die element nie-metale en word beide kante van die
teenwoordig is: sigsaglyn aangetref.
- Mon(o) – 1 atoom.
- Di – 2 atome.


Sample
- Tri – 3 atome. O1:
Verbindings Elemente op die Periodieke Tabel
• Elemente het 'n simbool, naam, atoomgetal en
massagetal.


Summaries after sample •



Gerangskik in horisontale rye (periode) en
vertikale kolomme (groepe).
Ontwikkel deur Dmitri Mendeleev in 1869.
Beweeg van regs na links op die Periodieke Tabel
– eienskappe verander van metaal na nie-metaal.
Goud het sedert antieke
tye waarde gehad
• Goud - smeebaarste en buigbaarste metaal. Chemiese formules
• Goud is van antieke tye af geassosieer met
rykdom, leierskap en aansien. • Elke element in 'n verbinding het sy eie simbool.
• Goudmynbedryf is die ruggraat van Suid- • Verbindings kan deur chemiese formules
Afrika se ekonomie. voorgestel word.
• Formules - dui die verhouding van elemente aan.




K2-O1 Via Afrika Kopiereg © www.summariessa.co.za (DO NOT COPY)
GR9 NW Breinkaart

, Sample
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