Valence electron in the element A are 3 and that in element B are 6. Most probable compound formed from A and B is

Options

A. `A_(2)B`
B. `AB_(2)`
C. `A_(6)B_(3)`
D. `A_(2)B_(3)`

Answer

D

Explanation

Valence electrons in A=3 Valence electron in B=6
Thus, A is electropositive and B is electronegative, A can loose three electrons and B can gain two electrons to attain stable configuration Hence, A exist as `A^(3+) and B " as " B^(2-)`
`therefore` Compound formed is `A_(2)B_(3)`