[求助] chem問一問 -0-

原帖由 小霞的fans 於 9/6/2008 12:36 PM 發表
A covalent bond is the strong electrostatic forces of attraction between the shared electrons
and the two positively charged nuclei of the bonded atoms,
紅色字果部份唔明,,唔識解,,點解會係正 ..
其實 ...

原帖由 abc666 於 9/6/2008 02:54 PM 發表

nucleus = proton+neutron
charge of proton is positive while that of neutron is neutral
therefore charge of nucleus is positive
每個atom 分別share 1粒=single bond
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原帖由 ccshong28 於 9/6/2008 03:46 PM 發表

想請問attrack點解??