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Chemistry 21 Online
OpenStudy (anonymous):

how to find valency if group number is given?

OpenStudy (anonymous):

the group number is taken from the valency no. that means group 1A havin. 1 elctron on the outer most shell & So on

OpenStudy (anonymous):

umm...can we do 18 minus group number for 13, 14...18...please help!!

OpenStudy (anonymous):

Sorry i can't get what u wanna to say plz explain ur question more

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