1.

What is the expended octet ? Write any three example of compound showing expended octet?

Answer»

Elements in and beyond the third period of the periodic table have, apart from 3s & 3p orbital, 3d orbital also available for bonding. In a number of compounds of this elements, there is more than 8 valence electron around a central atom. This is termed as expanded octet. 

Ex. PF5 , SF6 ,H2SO4



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