Question

An element Y has 3 electrons in its valence shell.The type of ion formed by YSingle choice. ​

Answer 1

Answer:

Explanation:

Valence electron in A=3

Valence electron in B=6

Thus, A is electropositive and B is electronegative. A can lose three electrons B can gain two electrons to attain a stable configuration.

Thus, A exists as $A^{3+}$ and  B  as  $B^{2-}$  thus, compound is $A_{2}$$B_{3}$ .