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Structura atomului te carbon repedeeeeeeee

Răspuns :

SCHITA LECTIEI I.                    STRUCTURA                   612 C             nucleoni = A=12;   p+ = 6;  n0 = 6;                                       e- = 6;   1s2 2s2 2p2         => perioada 2; gr IV-A                     straturi - 2                     substraturi - 3                     orbitali - 4                    - C are structura cvasistabila si nu formeaza ioni decat in conditii speciale( nu formeaza niciodata ioni pozitivi, se cunosc 2 cazuri cand formeaza ioni negativi- Be2C- carbura de beriliu             - Al4C3- carbura de aluminiu)                      - valenta constanta 4 exceptand CO, in care manifesta valenta 2                      -  poate sa-si satisfaca o parte din cele 4 valente cu alti atomi de carbon, formand lanturi lungi de atomi, numite CATENE                                                                            a) catene liniare                                                                            b) catene ramificate                                                                            c) catene ciclice