Ukuba iimpahla ezisanda kuthengwa zingumbane oqinileyo osisigxina, kungenxa yokuba ilaphu alilungile. Umzekelo, amalaphu imichiza ifayibha, ingakumbi ebusika static umbane unamandla kakhulu.
Isizathu sombane we-static kwiimpahla: Ukuba unxibe iimpahla zomqhaphu, kunye nemozulu eyomileyo, ngoko abantu abasemsebenzini, iimpahla kunye nolusu baya kuxubana, ii-athomu kwiimpahla zilahlekelwa yi-electron, ngoko ke intlawulo yangaphakathi nangaphandle ye-nucleus ayilingani, ibonisa umbane. Nangona kunjalo, ngenxa yokuba ukufuma (ukuxinana komphunga wamanzi) kwindawo ejikelezileyo kuqhele ukuba phezulu kunobusika, intlawulo eyenziweyo ithatyathwa ngokukhawuleza ngumphunga wamanzi okanye idityaniswe ngolusu kunye nomhlaba, kwaye ngaloo ndlela itsalwa emhlabeni.