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Manipal MET2014ChemistryStructure of Atom

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

Options

  1. AA₂ B
  2. BA B₂
  3. CA₆ B₃
  4. DA₂ B₃

Correct answer

D. A₂ B₃

Step-by-step solution

Valence electron in A=3 Valence electron in B=6 Thus, A is electropositive and B is electronegative. A can lose three electrons and B can gain two electrons to attain stable configuration. Thus, A exists as A³⁺ and B as B²⁻ thus, compound is A₂ B₃ .

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