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Chemistry · Oct / Nov 2017 · Paper 12 · Question 8

5070Ion and ionic bonds

X represents the element of atomic number 8 and Y represents the element of atomic number 19. The two elements react together to form a compound. Which row is correct for the compound formed?

  1. AY2X, covalent
  2. BY2X, ionic
  3. CX2Y, covalent
  4. DX2Y, ionic

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Correct answer: B. Y2X, ionic

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