An element X has a valency 3. Write the formula of its oxide

+1 vote
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asked Nov 6, 2017 in Chemistry by jisu zahaan (28,760 points) 26 374 811

An element X has a valency 3. Write the formula of its oxide

1 Answer

+1 vote
answered Nov 6, 2017 by sforrest072 (157,439 points) 61 410 937
selected Feb 13, 2018 by sarthaks
 
Best answer

Using criss – cross method of finding chemical formula 

Valency of X = + 3 

Valency of O = - 2 

After cross over valencies, formula will be X2O3.

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