CBSE Class 10 Answered
What is lone pair?
Asked by | 04 Oct, 2013, 09:10: PM
Expert Answer
A lone pair is the valence electron pair without bonding or withut sharing with other atoms. They are found in the outermost electron shell of an atom, so the lone pairs are a subset of a molecule's valence electrons. They can be identified by examining the outermost energy level of an atom—lone electron pairs consist of paired electrons as opposed to single electrons, which may appear if the atomic orbital is not full. Electron pairs are therefore considered lone pairs if two electrons are paired but are not used in chemical bonding. Thus, the number of lone electrons plus the number of bonding electrons equal the total number of valence electrons in a compound.
Answered by | 04 Oct, 2013, 09:32: PM
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