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iunoIn. How will you find the valencyof chlorine, sulphur' anmagnesium?

Answer»

Form the electronic configuration and the electrons are left in the last is your valency chlorine = at. no.=17.then electronic configuration is 2,8,7. so valency is -1.sulphur=16 .then electronic configuration is 2,8,6. so valency is -2.magnesium=12. then el.conf. is 2,8,2. so valency is +2.



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