Question

formula of valency and electronic configuration is?​

Answer 1

Answer:

( Valency = 8 - ve- ) where ve- valence electrons. ... no. is 17 electronic configuration is 2 , 8, 7, so outer shell have 7 electron we will find out the valency by using formula. Valency = 8 - ve- = 8 - 7 = 1 so valency of the chlorine is 1. In case of noble gases valency will be zero because of completely filled shells.