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Chicky
teaches chemistry to noobs
likes to watch naruto & bleach
enjoys playing computer & PSP games

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PS3 + LCD TV for my room
Obtained SEDD by 2008

Chicky Tok

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Friday, April 20, 2007

Shape of [SbF5]2-

Antimony, Sb, is in Group V of the Periodic Table so it has 5 valence electrons. Fluorine, from Group VII, only requires one electron through formation of 1 covalent bond to fulfill octet. Thus, all the 5 electrons of Sb are used to form covalent bonds with the 5 F atoms. Not forgetting that the ion has an overall charge of -2, i.e. there is an additional lone pair of electron on Sb. Thus, [SbF5]2- having 5 bond pairs and 1 lone pair has a square pyramidal shape.


[10:19 pm] chicky