Question
Thu February 23, 2012 By:

how can we determine the valency of an element by only looking at the distribution of electrons in K L M N orbits ?

Expert Reply
Fri February 24, 2012
The valency can be easily calculated with the help of distribution of electrons by using rules
 
Rule 1 :  if the valence electrons are less than 4 than the valency = no of valence electrons
 
 
Rule 2: If the valence electrons are greater than 4 the valency= 8 -  no of valence electrons
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