Based on the group valency of element. Write the molecular formula of the following compounds giving justification for each;i)oxide of first group elements. ii)halide of the elemets of group thirteen, and iii)compound formed when an element,A of group 2 combines with an element,B of group seventeen.plz answer this.I mark your answer as brainilist answer....
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1) Na2O ,in it Na have oxidation state of 1 (1×2)and oxygen have oxidation state -2
2)BCl3 ,in it oxidation state of B is +3 and Cl have -1(-1×3)
3)MgCl ,in it Mg have +2 and Cl have -1(-1×2) oxidation state
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