Based on the group valency of elements state the formula for the following giving justification for each i)Oxides of 1st group elements ii)Halides of elements of group 13 iii)Compounds formed when an element of group 2 combines with an element of group 16.

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Answers

2016-02-23T18:45:18+05:30
1)X2O
2)XY where Y are halogens
3)XY
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