Koolstofgroep
Die koolstofgroep bestaan uit die chemiese elemente van groep 14 van die periodieke tabel.
| '14' | ||
| ↓ Periode | ||
| 2 | 6 C | |
| 3 | 14 Si | |
| 4 | 32 Ge | |
| 5 | 50 Sn | |
| 6 | 82 Pb | |
| 7 | 114 Fl | |
Hierdie elemente word deur 'n valenselektronkonfigurasie [..]ns2np2 gekenmerk en het daardeur vier valenselektrone. Dit lei dikwels tot die vorming van netwerke van kovalente bindings, waarin die sentrale atoom deur 'n tetraëder van ligande omring word.
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