IBanga le-11 bebelokhu befunda mayelana nesakhiwo sama-athomu, okuhlanganisa nemiphumela ye-electron excitation. Imibala esesithombeni ikhiqizwa ngenxa yokuthi ama-electron aku-ion yensimbi “ajabule” ngemva kokuthatha amandla ngenqubo ebizwa ngokuthi “ukumuncwa”. Lapho ama-electron elahlekelwa amandla futhi, akhipha amaza okukhanya okuyisici futhi singakwazi ukubona izinsimbi nge-spectrum ayikhiphayo. Lokhu kuhlola kubonisa umqondo wezinguquko ze-quantum ekuhlelweni kwama-electron, okuwumkhondo obaluleke ngempela wokuthi ama-athomu asebenza kanjani. Lezi zinsimbi ezisetshenziswayo zivame ukutholakala kuma-firework ukuze zinikeze imibala yazo yesici.
I-International School 
