Dawb txhais hluav taws xob
Cov hluav taws xob dawb yog cov xaim hluav taws xob uas tsis tawm hauv ib qho atom. Cov hluav taws xob zoo no tuaj yeem txav mus rau hauv cov chaw los yog lub tshuab nqus tsev thaum lawv raug rau lub zog hluav taws xob lossis chaw sib nqus. Piv txwv, atoms yog koom ua ke rau hauv cov hlau muaju feem ntau los ntawm valence electrons nyob rau txheej sab nraud ntawm atoms thiab ib feem ntawm cov hluav taws xob sab hauv. Nyob rau hauv ib txwm muaj xwm txheej, qee lub laj kab hluav taws xob tuaj yeem sib nrug los ntawm atoms thiab txav mus los dawb hauv cov kab nrig. Cov hluav taws xob zoo li no hu ua hluav taws xob dawb.