引用第1樓迪神於2006-11-23 13:49發表的“”:
ionic bond----------two atoms optained stable electronic configuration by donating electron
eg. NaCl, Na donate一粒electron比Cl,變成Na+,相反Cl接左粒電子,變成Cl-,同時間兩邊既outermost electron都有八粒~
covalent bond---------two atoms obtain stable electronic configuration by sharing electron
.......