| 释义 |
DictionarySeebondpolar covalent bond
polar covalent bond[′pō·lər kō′vā·lənt ′bänd] (physical chemistry) A bond in which a pair of electrons is shared in common between two atoms, but the pair is held more closely by one of the atoms. polar covalent bond
polar covalent bondA covalent bond in which one atom attracts the shared pair of electrons more strongly than does the other atom, and thus has a slightly negative charge. The atom with the weaker attraction has a slightly positive charge. See also: bondpolar covalent bond A chemical bond in which electrons are shared unequally between the two linked atoms. The effect is that one end of the resulting molecule has a slight negative charge while the other end is slightly positive.AcronymsSeePCB |